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/ 


Mine Safety Orders 

rr-'i y 0 I S 

Issued by the 


Industrial Accident Commission 

of the 


State of California 


54 / 


525 Market Street, San Francisco 
Union League Building, Los Angeles 


EFFECTIVE JANUARY 1, 1921 


California State Printing Office 

J. M. CREMIN, SUPERINTENDENT 
SACRAMENTO, 1920 


6163 



TN 

• C 3 

I °\ 2u\ 


INDUSTRIAL ACCIDENT COMMISSION 
OF THE STATE OF CALIFORNIA 

525 Market Street, San Francisco 

423 Union League Building, Los Angeles 


WILL J. FRENCH, Chairman; 
A. J. PILLSBURY, 

A. H. NAFTZGER, 

Commissioners. 


n. M. WOLFLIN. 

Superintendent of Safety. 


LISPARY gf congress 

T2CE!VED 

JAN 11 1921 


> documents division 









MINE SAFETY ORDERS. 

PREFACE. 


Sections 33 to 54, inclusive, of the Workmen’s Com¬ 
pensation, Insurance and Safety Act give the Indus¬ 
trial Accident Commission power to make and enforce 
safety orders, rules and regulations, to prescribe safety 
devices, to fix safety standards, and to order the report¬ 
ing of injuries. 

The Mine Safety Rules, effective January 1, 1916, 
were adopted by the Industrial Accident Commission 
during the year 1915. Prior to the adoption of the 
rules the committee held a number of meetings and 
drafted Mine Safety Rules. The commission then 
adopted these rules after holding two public 
hearings. 

The rules were drafted by the following committee: 

Representing California Metal Producers’ Association — 

A. P. Anderson, Pacific Coast manager, United States Smelting, 
Refining and Mining Company. 

(G. W. Metcalf, manager Mammoth Copper Company, alter¬ 
nate to Mr. Anderson.) 

N. S. Kelsey, manager Argonaut Mining Company. 

Arthur B. Foote, superintendent The North Star Mines. 

Representing Mine Employees — 

James Giambruno, secretary Amador County Miners’ Union 
No. 135. 

J. C. Williams, secretary Grass Valley Miners’ Union No. 90. 
A. M. Arandall, secretary Randsburg Miners’ Union No. 44. 

Representing Industrial Accident Commission — 

H. M. Wolflin, mining engineer, United States Bureau of 
Mines. 

In 1920 the commission requested various interests 
to serve on a committee to revise the mine safety 
rules, now designated as mine safety orders. 


4 


Mine Safety Orders. 


The orders were revised on March 22, 23, 1920, by 
the following committee: 

A. P. BusEy, Jr. (chairman), manager Penn Mining Company 

G. Chester Brown (secretary), Chief Mining Engineer, Indus¬ 
trial Accident Commission. 

N. S. Kelsey, general manager Argonaut Mining Company. 

Arthur B. Foote, superintendent The North Star Mines. 

C. G. Dennis, manager St. Johns Mines Company. 

Edwin Higgins, mining engineer, The Metals Exploration 
Company. 

C. H. Fry, engineer California Metal and Mineral Producers 
Association. 

Philip Oates, secretary Mine Workers Protective League. 

Sid Rich, president Local Union No. 45, International Union 
of Mine, Mill and Smelter Workers. 

(W. J. Patrick, Local Union No. 45, International Union of 
Mine, Mill and Smelter Workers, alternate to Mr. Rich.) 

R. W. Rodda, Empire Safety Bear Club. 

II. M. WolFlin, Superintendent of Safety, Industrial Accident 
Commission. 

A public hearing was held on August 17, 1920, at 
which time the proposed Mine Safety Orders were dis¬ 
cussed in detail and a few of the orders referred back 
to the committee to be redrafted. The committee met 
on September 17, 1920, and redrafted the orders that had 
been referred back to it. 

At a meeting of the Industrial Accident Commission, 
the Mine Safety Orders were adopted, to become effect¬ 
ive on January 1, 1921. 


MINE SAFETY ORDERS. 


Order 1700. Definitions. 

(a) Application .—Thege orders shall apply to all mines 
operated in the State of California; provided, that in 
cases where, in the opinion of the Industrial Accident 
Commission, the enforcement of any order would not 
materially increase the safety of employees, and would 
work undue hardship on the operator, exemptions may 
be made at the discretion of said Commission, but such 
exemptions must be in writing to be effective, and can 
be revoked after reasonable notice is given in writing; 
provided, further, that the orders shall not apply to the 
operation of mines employing three men or less on one 
shift, or to gold dredges, hydraulic mining operations, 
or surface placer mining, except where the orders specif¬ 
ically provide for the inclusion of these classes of min¬ 
ing in their provisions. 

( b ) Singular and plural numbers .—For the purposes 
of these orders, the singular number when used in refer¬ 
ence to persons, acts, objects, and things of whatsoever 
kind and description shall, whenever the context will 
permit, be taken and held to import and include the 
plural number, and the plural number shall similarly 
be taken and held to import and include the singular. 

(c) Mine .—The term “mine” shall include prospect 
openings, pits, banks, and opencut workings, and shall 



6 


Mine Safety Orders. 


embrace any and all parts of the property of such 
“mine” and mining plant, on the surface or under¬ 
ground, that contribute directly or indirectly to the 
mining or handling of minerals; provided , that when 
a group of workings in proximity to one another and 
under one management are administered as distinct 
units, each working shall be considered a separate mine. 

( d ) Mineral. —The term “mineral” shall mean what¬ 
ever is recognized by the standard authorities as 
mineral, whether metalliferous.or nonmetalliferous, but 
shall not be held to embrace or include coal, lignite, 
gas, oil, or any substances when extracted in solution 
through bore holes. 

( e ) Operator. —The term “operator” shall mean the 
person, firm, or body corporate in immediate possession 
of any mine and its accessories as owner or lessee 
thereof, and as such responsible for the condition and 
management thereof. 

( f ) Superintendent. —The term “superintendent” shall 
mean the person having the immediate supervision of 
the mine. 

( g) Mine foreman. —The term “mine foreman” shall 
mean a persoji who at any one time is charged with 
the general direction of the underground work. 

( h ) Chief mining engineer. —The term “chief mining 
engineer” shall signify the mining engineer employed 
by the California Industrial Accident Commission to 
have charge of the mine safety work. 


Industrial Accident Commission. 


7 


(i) Mining engineer .—The term “mining engineer” 
shall mean one of the mining engineers of the Cali¬ 
fornia Industrial Accident Commission. 

(/) Excavations or workings .—The words “excava¬ 
tions” and “workings” shall signify any or all parts 
of a mine excavated or being excavated, including 
shafts, tunnels, entries, galleries, open cuts, and all 
working places, whether abandoned or in use. 

( k ) Number of men .—Whenever the expressions 
“number of men” or “average number of men” employed 
in a mine are used, as defining or constituting classes 
of mines to which these orders, or any specific sec¬ 
tion, clause, or provision thereof, does or does not 
apply, such expressions shall be construed to mean 
the average number of men employed during the pre¬ 
vious calendar month, as shown by the returns to the 
chief mining engineer or by the books or pay roll of 
the mine, or by all of such means, and such average 
number shall be determined by dividing the total 
number of man shifts by the number of days the 
mine is worked during such period. 

(/) Explosive .—The term “explosive” or “explosives* 
shall be held to mean and to include any chemical 
compound or any mechanical mixture that contains 
any oxidizing and combustible units or other ingred¬ 
ients in such proportions, quantities, or packing that 
an ignition by fire, by friction, by concussion, by 
percussion, or by detonator, of any part of the compound 
or mixture may cause such a sudden generation of 


8 


Mine Safety Orders. 


Number 

of men 

employed, 

tonnage 

produced, 

condition 

of safety 

devices, etc., 

to be 

reported 

yearly. 


highly heated gases that the resultant gaseous pressures 
are capable of producing destructive effects on con¬ 
tiguous objects or of destroying life and limb. 

(m) Person .—The term “person” shall be held to 
mean and include a firm or body corporate as well 
as natural persons. 

(«) Underground .—The term “underground” shall 
be held to mean “within the limits of” any mine work¬ 
ing or excavation and shall not exclude such workings 
or excavations as may not be covered over by rock or 
earth. 

( 0 ) Employees .—The terms “employees” and “men 
employed” shall be held to mean all men receiving com¬ 
pensation from the operator, directly or indirectly, for 
labor or services performed in connection with the mine 
and shall include contractors, leasers, tributers, or any 
one else similarly employed. 

Order 1701. Reports to Chief Mining Engineer. 

(a) It is hereby made the duty of the operator of 
each and every mine within the state coming within the 
provisions of these orders, to forward to the chief min¬ 
ing engineer at his office not later than the 20th day of 
April of each year, a detailed report in writing on a 
form supplied by the Commission, showing the character 
of the mine, tonnage of product during the previous 
year ended December 31st, the average number of men 
therein employed during the year, and the number of 
days the mine was worked. Other information relative 
to the workings, equipment, ventilation, sanitation. 


Industrial Accident Commission. 


9 


means of ingress and egress, shafts, supports, safety de¬ 
vices, storage of explosives, and means taken to protect 
lives and insure safety to men in relation to any of the 
requirements of these orders shall be given to the In¬ 
dustrial Accident Commission from time to time as 
required. All such reports shall be filed in and become 
part of the records of the office of the Industrial Acci- ? eports . 

dent Commission. Blank forms for such reports shall be operated 

• less th an 

furnished by the Commission; provided, however, that a yea r. 

in the case of any mine being operated for less than one 
year prior to December 31st in any year, the operator in 
such event shall forward a report, in like manner, cover¬ 
ing the period during which said mine was operated; 
and provided, further, that in the event of the sale or 
lease of any mine during any year prior to Decern- Reports, 
ber 31st, then and in that event it shall be the duty of when mine 
the owner or operator so selling, leasing, or turning J“ a g g e ’ 
over such mine to a succeeding operator to supply to ment. 
such succeeding operator a like report, as required in 
this section, covering the period of such former opera¬ 
tions within said year; and it shall then and in that 
event become the duty of such succeeding operator to 
forward such report so turned over, together with said 
succeeding operator’s report, for the period of said suc¬ 
ceeding operator’s operations, to the chief mining 
engineer as aforesaid not later than the 20th day of 
April in each year. 

( b ) In all cases, occurring in or about any mine, of Dangerous 
r . ■ ... - conditions 

fires, threatening or causing injury to men or mine to be imme- 

workings, appearance of dangerous gas, breakage of t J e * 

ropes or other gear by which men are hoisted or low- chief mining 

ered, ovenvinding while men are being hoisted, unex- mine 

pected serious inrush of water, threatened crushing of °P erator > 


10 


Mine Safety Orders. 


Operator to 
appoint 
person on 
whom no¬ 
tices may 
be served. 


Designation 
to continue 
in force 
until 
revoked. 


mine zvorkings, or any other accident, occurrence, or 
change of conditions tending materially to increase the 
hazards of mining, whether or not personal injury 
results, a report thereof, signed by the operator or 
superintendent shall immediately be sent in zvriting to 
the chief mining engineer. 

( c ) Every operator of a mining property upon re¬ 
suming or starting new operations, shall send a notice 
to the chief mining engineer, giving the location of 
the mining property, name of the superintendent, oper¬ 
ating company, number of men employed on the sur¬ 
face and number of men employed underground. 

Order 1702. Designation for Service of Notices. 

(a) Every operator of any mine within the provisions 
of these orders shall, within sixty days after the approval 
of the orders by the Commission, file or cause to be filed 
in the office of the chief mining engineer of the Com¬ 
mission a designation, duly verified by such operator, 
appointing a person on whom all notices, warnings, 
or processes required to be served under the provi¬ 
sions of these orders may be served, and giving the 
office, place of employment, or place of business of 
such person, which must be within the state. 

( b ) Such designation shall continue in force until 
revoked by the death or removal of the person so desig¬ 
nated, or until revoked by an instrument in writing 
designating in like manner some other person upon 
whom such notices or processes may be served, or until 
the filing in such office of a written revocation of said 


Industrial Accident Commission. 


11 


consent executed by the person so designated. If the 
person so designated dies, or removes from the state, 
or files a revocation of his consent, the operator shall 
designate, within thirty days thereafter, in like manner 
some other person upon whom such notices or pro¬ 
cesses may be served within this state. 

(c) Services on such designated person of notices, Operators or 
.... .. . . , agents may . 

warnings, or processes shall, in all cases arising under be so desig- 

these orders, be deemed service on the operator repre- nated * 
sented; provided, further , that nothing herein contained 
shall be construed to prevent the said operator in per¬ 
son, or by its officers or agents, if said operator be a cor¬ 
poration, or any employee of such operator, from being 
so designated. 

Order 1703. Care of the Injured. 

(a) It shall be the duty of operators, superintendents, 
or any one in charge of any mine, to keep at such places materials 
about the mine as may be designated by the chief min- kept^vari- 
ing engineer, a Homestake or Stokes Navy stretcher, a [^ 3 a ^ ac a e b s 0(lt 
woolen blanket, a water-proof blanket, and such first-aid mines, 
materials, as may be designated in subsequent portions 
of these orders, in good condition for use in caring for 
any person who may be injured at the mine. 

At all mines and metallurgical plants, not less than two First-aid 
per cent of the employees shall receive first-aid train- quired *at 
ing. In addition thereto all bosses shall receive first- Imnes ' 
aid training. On and after January 1, 1922, at least ten 
per cent of the employees shall receive first-aid train¬ 
ing. First-aid corps shall consist of the foreman 


12 


Mine Safety Orders. 


or foremen, shift bosses, and other employees desig¬ 
nated by the superintendent; and it shall be the 
duty of the operator or superintendent of the mine 
to cause the organization of such employees and to 
provide for the instruction of the members of such 
first-aid corps from time to time, not less than once in 
each calendar month, in the proper handling and treat¬ 
ment of injured persons before the arrival of a physi¬ 
cian. 

Such instruction may be given by a physician or 
by any competent first-aid instructor, who has a first- 
aid certificate issued by the U. S. Bureau of Mines 
or the American Red Cross. The holders of such 
certificates who are training men shall be examined 
yearly as to their competency. 

( b ) The aforementioned first-aid materials for use 
at the various stations where stretchers are kept shall 
consist of least twelve triangular bandages, six first- 
aid compresses, three packets of picric acid gauze, 
(one yard square), one two-ounce bottle of aromatic 
spirits of ammonia, one two-ounce bottle of iodine not 
stronger than U.S.P., one tourniquet, one-half dozen 
paper drinking cups, one pair of forceps, twelve roller 
bandages (one-half, one, one and one-half, two and 
three inches). Also a complete set of splints as given 
below: 

1. 1 splint, 4 inches wide by 10 inches long by \ inch thick. 

1 splint, 4 inches wide by 12 inches long by \ inch thick. 

(To be used for a fracture of the arm or hand.) 

2. 1 splint, 4 inches wide by 16 inches long by £ inch thick. 

I splint, 4 inches wide by 15 inches long by \ inch thick. 

(To be used for a fracture of the forearm, elbow or foot.) 


Industrial Accident Commission. 


13 


3. 1 splint, 4 inches wide by 55 inches long by £ inch thick. 

(To be used for a fracture of the thigh.) 

4. 3 splints, 4 inches wide by 33 inches long by | inch thick. 

(To be used for a fracture of the knee cap and leg, and 

with the above makes up the splint for a fractured thigh.) 

5. 2 splints, 4 inches wide by 84 inches long by 1 inch thick. 

3 splints, 4 inches wide by 15 inches long by 1 inch thick. 

(To be used for a broken back, dislocation of the hip and 
fracture of the pelvis.) 


At least three triangular bandages and three com¬ 
presses shall be kept on each working level. It shall 
be the duty of the mine superintendent to see that 
used or opened packets are immediately replaced. It 
is recommended that each boss carry a water-proof 
tin packet containing a. triangular bandage and a 
compress. 


Order 1704. Oxygen Mine Rescue Apparatus. 

(a) The operator or superintendent of every minej^| en 
employing more than fifty men underground on one rescue 
shift, shall provide and keep in a readily accessible place, required! 8 
at least five sets of oxygen mine rescue apparatus, to 
be used in case of emergency; provided, that the In¬ 
dustrial Accident Commission may require the main¬ 
tenance of five such sets of mine rescue equipment at 
a mine employing less than fifty men underground on 
one shift, when the ventilation or the fire hazard at such 
mine may, in the opinion of the Commission, justify 
this protection. Aforesaid apparatus shall be of a 
type approved by the Industrial Accident Commission. 

Nothing in this section shall be construed to prevent mine rescue 
the construction of a co-operative station in any district permitted. 


14 


Mine Safety Orders. 


Competent 
foreman 
required 
at a co¬ 
operative 
station. 


Monthly 
tests of 
apparatus. 


where mine operators may build and maintain a station 
to supply apparatus for several mines; not less than 
five apparatus shall be kept at such station. In any 
cas€, a co-operative station shall be located at no 
greater distance from each mine which it supplies than 
can be covered by the most convenient means of trans¬ 
portation in one hour’s time, during all seasons of 
the year. 

( b ) Where a co-operative station is maintained, an 
active, competent, trustworthy, and well trained man 
shall be designated as foreman to have charge of such 
station. Such foreman need not be exclusively so em¬ 
ployed, but his employment shall be such that he or a 
substitute can be promptly notified in case of need. 
He shall occupy living quarters therein, or convenient 
thereto, and shall make reports to the Industrial Acci¬ 
dent Commission as provided in paragraph ( f ) of this 
section. Each month when the required tests of the 
apparatus are being made at a co-operative station, a 
superintendent of one of the mines supplied by such 
station (or a competent, well trained man designated by 
such superintendent) shall be present, and together with 
the foreman, shall sign the report made to the Industrial 
Accident Commission. The superintendents of mines 
supplied by a co-operative station, or the persons desig¬ 
nated by such superintendents, shall each take turns 
observing these tests and inspections, and approving the 
reports of the station foreman, so that it will be neces¬ 
sary for but one representative of the companies to be 
present each month. 


Industrial Accident Commission. 


15 


(c) Telephone communication shall be maintained be- Telephone 

, . , , . , . , . communica- 

tween a co-operative station and each mine which it tion required 

supplies. If the foreman in charge of a station does not operative 
reside thereat, his residence also shall be in telephone stations, 
communication with each mine supplied by the station. 

(d) In addition to the supplies used for training of ^hours’ 
men an emergency supply of oxygen and regenerator required 
charges sufficient to keep each apparatus running for at apparatus, 
least ten hours shall be kept on hand, at each station— 
co-operative and privately owned. Any additional parts 
which require frequent renewals shall be kept at each 
station. 

(e) The apparatus at privately owned stations shall inspections 
be inspected monthly by a competent and well trained required ™ 11 * 3 
man designated by the superintendent for this duty. At 
co-operative stations the inspections and tests shall be 

made by the foreman of the station, in the presence of 
a representative of one of the mines supplied by such 
station, as provided for in paragraph ( b ). Monthly 
inspections of each apparatus shall include tests for 
tightness of all joints, breathing bags and breathing cir¬ 
cuit, the flow of oxygen from the reducing valve, and 
volume of air in circulation; for injector types, the 
pressure and vacuum also shall be recorded. 

(/) The result of such tests and inspection shall be tests 1 must 

tabulated on a form to be furnished by the Commission, reported 

J ’to Com- 

and shall be forwarded to the office of the chief mission. 

mining engineer at least once a month. 


16 


Mine Safety Orders. 


( g ) At each mine not less than five men shall be so 0 ne trained 

. „ . . man for each 

instructed in the use of the oxygen mine rescue appa- apparatus 

ratus that they shall be thoroughly competent to use the eSmln? 

same in actual service. 

(h) The superintendent of each mine where mine Must train 
rescue apparatus is kept shall cause the men who are Sites 
to be trained in the use of said apparatus to be given f® r s ™^ e th 
a careful physical examination by a physician before 
starting such training and shall cause them to practice 

with the apparatus at least once each month. Said 
practice shall include work in a room or chamber 
filled with smoke or irrespirable gas for at least sixty 
minutes each month. 

Order 1705. Mine Maps. 

(a) The operator of every mine shall make or main- Mine maps 
tain, or cause to be made or maintained by a competent ISbrought 
mining engineer or surveyor, or other person equally “jj* date 
competent, a clear and accurate map or maps, with 
sections, if necessary, showing clearly all the workings 
of such mine. At least once in every calendar year, 
or oftener, if necessary, the operator or superin¬ 
tendent of each mine shall cause to be shown clearly 
and accurately on the map or maps of such mine, all the 
excavations made therein during the time elapsed since 
such excavations were last shown on such map or maps, 
and all parts of said mine that shall have been worked 
out or abandoned during said elapsed period of time 
shall be clearly indicated on said map o* maps, and all 


Industrial Accident Commission. 


17 


underground workings shall be surveyed and mapped 
before they are allowed to become inaccessible. 

( b ) Before any mine having underground workings Mine ma P s 
• iiti to be fllea 

is abandoned, the operator of such mine shall cause in office of 

to be made by a competent engineer or surveyor, a engineer 01 " 8 
map on a smaller scale than 101 feet to the inch, upon 
showing all underground workings. A print or copy of mine. 1 
such map, certified by the superintendent or operator, 
shall be filed in the office of the chief mining engineer. 

This map shall not be available to any person other 
than the Industrial Accident Commission, the chief 
mining engineer or mining engineers, without author¬ 
ization of the owner of the property. 

Order 1706. Dangerous Mines. 

(a) Whenever the chief mining engineer or one of Procedure of 
the mining engineers shall find any mine or part of any 2jJJ een 

mine in an unsafe condition by reason of any violation dangerous 

. conditions 

of any of these orders, or in a condition dangerous or are found. 

detrimental to the life or health of those employed 
therein for the same reason or by reason of defects 
in timbering, or other means of support, in mining, in 
ventilation, or in sanitation, it shall be the duty of the 
chief mining engineer to serve or cause to be served 
a notice in writing on the operator or superintendent 
of such mine, or on the person designated by such 
operator for service in accordance with order 1702 of 
these orders, and such notice shall set forth in detail 
the nature and extent of the defects that render the 
mine or part of the mine unsafe, dangerous or detri¬ 
mental to the life or health of those employed therein, 


2—6163 


18 


Mine Safety Orders. 


Procedure 
of engineers 

if operators 
fail to 
follow 

instructions. 


Use of unsafe 

machinery, 

how 

prevented; 

injunction. 


together with the point or place in the mine or 
in the workings of the mine where such defects exist, 
and such notice shall require the necessary changes 
to be made in such mine or part of the mine without 
delay or within a specified time at the discretion of 
the Industrial Accident Commission. 

( b ) If it appear from a reexamination of the mine 
by the chief mining engineer or a mining engineer 
that such necessary changes have not been m,ade 
within the time specified in such notice, and that the 
mine or part of the mine is still in a condition 
of danger to life or health, and in the opinion of 
the mining engineer it is necessary for the safety of 
the life or health of the employees in such mine or 
part of the mine, the Industrial Accident Commission 
shall be notified and shall take such steps as are pro¬ 
vided for in the Workmen’s Compensation, Insurance 
and Safety Act. 

(c) Workmen’s Compensation, Insurance and Safety 
Act, section 4(new). Unsafe places of employment 
prohibited. Use of dangerous machinery prohibited. 

'‘SEC. 46}4 (new)*. If the condition of any employ¬ 
ment or place of employment or the operation of any 
machine, device or apparatus shall constitute a serious 
menace of the lives or safety of persons about it, 
the commission, or a commissioner, may apply to the 
superior court of the county in which such place of 
employment, machine, device or apparatus is situated, 


‘Chapter 586, Laws of 1917, as amended by Chapter 471, 
Laws of 1919. 



Industrial Accident Commission. 


19 


for an injunction restraining the use or operation 
thereof until such condition shall be corrected. The 
said application accompanied by affidavit showing that 
such place of employment, machine, device or appa¬ 
ratus is being operated in violation of a general or 
special safety order of the commission, and that such 
use or operation constitutes a menace to the life or 
safety of any person or persons employed thereabout, 
accompanied by a copy of the order or orders applicable 
thereto shall constitute a sufficient prima facie showing 
to warrant, in the discretion of the court, the imme¬ 
diate granting of a temporary restraining order. No 
bond shall be required from the commission as a 
prerequisite to the granting of any restraining order. 

When in the opinion of the industrial accident commis- Prohibiting 
sion a machine ..or any part thereof is in a dangerous Jj^erous 
condition or is not properly guarded or is danger- machine, 
ously placed, the use thereof shall be prohibited by 
the commission, and a notice to that effect shall be 
attached thereto. Such notice shall not be removed Notice, 
except by an authorized representative of the commis¬ 
sion, nor until the machinery is made safe and the 
required safeguards or safety appliances or devices 
are provided, and in the meantime such unsafe or 
dangerous machinery shall not be used.” 

Order 1707. Report of Fatal Injuries. 

Section fifty-three of the Workmen’s Compensation, 
Insurance and Safety Act of 1917, approved May 
23, 1917, is hereby amended to read as follows: 

“SEC. 53. (a) Every employer of labor, without any Report of 
exceptions, and every insurance carrier, and every taiury * 


20 


Mine Safety Orders. 


physician or surgeon who attends any injured em¬ 
ployee, is hereby required to file with the commission, 
under such rules and regulations as the commission 
may from time to time make, a full and complete 
report of every injury to an employee arising out of 
or in the course of his employment and resulting in 
loss of life or injury to such person; provided, that 
such report shall not be required unless disability 
resulting from such injury lasts through the day of 
the injury or requires medical service other than 
ordinary first-aid treatment. Where the injury re¬ 
sults in death, a report shall be made by the em¬ 
ployer to the commission by telephone or telegraph 
forthwith. Such report shall be furnished to the 
commission in such form and such detail as the com¬ 
mission shall from time to time prescribe, and shall 
make specific answers to all questions required by the 
commission under its orders and regulations. It shall 
be unlawful for any person, firm, or corporation, agent 
or officer of a firm or corporation, to fail or refuse to 
comply with any of the provisions of this section, and 
any such person, firm, corporation, agent or officer of 
a firm or corporation, who fails or refuses to comply 
with the provisions of this section shall be guilty of 
a misdemeanor for each and every, offense and upon 
conviction thereof shall be punishable by a fine of not 
less than ten dollars nor more than one hundred 
dollars * * 


Industrial Accident Commission. 


21 


Upon receiving such notice the chief mining engineer investigation 

or a mining engineer shall, if feasible and if the nature ^juriesVo 

of the accident shows it to be necessary, proceed to the b ® made 

. . . when neces- 

scene of the accident as early as possible and investigate sary. 

fully the cause of the accident, and within twenty days 

thereafter shall file the result of such investigation as a 

report in the office of the chief mining engineer. When- statements 

ever the chief mining engineer or a mining engineer can fatai esses 

not proceed as above to the scene of the accident, t0 

, r , • , „ , . , . be filed with 

the person in charge of the mine shall be so informed, industrial 

and such person in charge shall obtain signed state- commission, 
ments, sworn to where practicable, of those who 
witnessed the accident, or if no one was present 
at the time of such accident he shall obtain the 

statements of those first arriving upon the scene. 

Such statements shall give, as far as possible, the 

details of the accident, the facts leading up to it, 
and its probable cause; such statements shall imme¬ 
diately thereafter be sent to the Industrial Accident 
Commission, which shall file the same in its office 
as public records. Blank forms for these statements 
shall be furnished by the Commission. A transcript 
of the evidence given at the coroner’s inquest may 

be sent in in place of these statements when the mine 
operator so desires. 

Order 1708. Superintendent to be Appointed. 

( a ) The operator of every mine shall appoint a man superin- 
who shall be personally in charge of the mine and the gJafibe 
performance of the work done therein, who shall be appointed, 
designated as the “superintendent”; provided, however, 


22 


Mine Safety Orders. 


Superin¬ 
tendent to 
cause safety 
inspections 
to be made 
and to re¬ 
port to 
operator de¬ 
fects he 
can not 
immediately 
correct. 


that nothing herein contained shall prevent the owner 
or operator of any mine from personally filling the office 
of superintendent. 

In mines employing twenty-five men or more, no man 
shall be employed as superintendent who has not had 
three years’ experience in mine work, and in mines em¬ 
ploying less than twenty-five men no man shall be 
employed as superintendent who has not had at least 
two years’ experience in mining work. 

( b ) The superintendent of every mine shall inspect, 
or cause some competent person or persons appointed 
by him to inspect machinery, boilers, engines, maga¬ 
zines, shafts, shaft houses, underground workings, 
roofs, pillars, timbers, explosives, bell ropes, speaking 
tubes, telephones, tracks, ladders, dry closets, and all 
parts and appliances of said mine in actual use, and any 
such person or persons appointed by the said superin¬ 
tendent shall at once report any defects therein to the 
superintendent. It shall be the duty of the superin¬ 
tendent upon ascertaining such defects, to take immedi¬ 
ate steps to remedy the same so as to make the same 
comply with the provisions of these orders, and he shall 
forthwith notify the operator of said mine of the exist¬ 
ence of any such defects as he may not be able to imme¬ 
diately correct. It shall be the duty of the superin¬ 
tendent to appoint a competent man to have full charge, 
under the direction of said superintendent, of every 
magazine containing explosives situated on such mining 
property, and to make such other appointments and per¬ 
form such other duties as are provided by these orders 
to be performed by such superintendent. 

(c) .Weekly shaft inspection reports shall be filed 
in the mine office as outlined below. 


Industrial Accident Commission. 


23 


WEEKLY SHAFT INSPECTION REPORT 
TO BE FILED IN THE MINE OFFICE 


Name of Inspector. 


Date___:_ 

Remarks 

Timbers 

Guides or track 

Safety gates or guard rails 

Shaft clearance 

Safety devices on cage 

Skip or cage coupling 

Hoisting ropes 

Top sheave wheel 

Overwinding devices 

Chutes 

Chute gates 

Bell signal system 

Telephone system 

Manway 

Ladders and platforms 

Date hoisting rope was last cut off 

Length of hoisting rope removed_feet; date_ 

Note.—A cave-in in shaft or “hanging up” of cage or skip in 
shaft or any unusual incident must be noted on the next following 
weekly shaft inspection report. Give details of cause and method 
of correction. 


(d) Safety * committees shall be organized at all 
mines employing twenty-five (25) or more men. The 
personnel of these committees shall be selected by the 
superintendent of the mine. The committees shall 
devise ways and means to reduce the number of 





24 


Mine Safety Orders. 


Qualifica- 
cations of 
foreman. 


Mine fore¬ 
man is re¬ 
sponsible for 
safety of 
under¬ 
ground men. 
and must 
report vio¬ 
lations of 
orders. 


accidents and to carry on safety education among 
the men by means of literature, posters, etc. The 
committees shall hold monthly meetings, keep a care¬ 
ful record of the proceedings at such meetings and 
encourage the men to make safety suggestions. All 
suggestions shall be acted upon by one of the com¬ 
mittees. 

Order 1709. Mine Foreman to be Appointed. 

(a) The superintendent of every mine shall appoint a 
man who personally shall be in charge ot the under¬ 
ground workings of the mine and personally direct 
the work of the men employed underground therein, 
who shall be designated as the “mine foreman”; 
provided, however , that nothing herein contained 
shall be construed to prevent the superintendent of 
any mine from also filling the position of mine fore¬ 
man. Any person appointed to the position of mine 
foreman shall be at least twenty-one years of age, shall 
have had at least two years’ practical experience under¬ 
ground, and shall be able readily to read and write the 
English language. 

Order 1710. Foreman’s Duties. 

(a) The mine foreman personally shall attend to his 
duties in the mine as provided in these orders, and shall 
see that the regulations provided herein for insuring the 
safety of all men employed in such mine are carried out; 
he shall immediately report to the superintendent of the 
mine or, in the absence of the superintendent, to the 
assistant superintendent or mine operator, any violations 
or infringements of these orders observed by him within 
the mine, and shall take immediate steps to remedy the 


Industrial Accident Commission. 


25 


same. He shall permit no person to work in an unsafe 
place, unless for the purpose of making it safe or when 
work in such a place is unavoidable; and shall provide 
adequate supervision for the men in the performance of 
their work. 

( b ) The mine foreman shall make or cause his assist¬ 
ants or shift bosses to make an inspection of every 
working place in the mine under his charge, at least 
twice during each shift or working day of eight hours. 
One of these inspections shall be made as early during 
the first half of the shift and the other as early during 
the second half of the shift as is consistent with the 
routine working of the mine; provided, that in the event 
of an undue number of accidents occurring in any mine, 
which, in the opinion of the Industrial Accident Com¬ 
mission, might be decreased by more frequent inspec¬ 
tions, it shall be left to their discretion to require such 
additional inspections to be made by the mine foreman 
or his assistants or shift bosses. 

( c ) Whenever a mine foreman can not personally 
carry out the provisions of these orders, so far as they 
pertain to him, the superintendent shall employ or 
authorize the foreman to employ a sufficient number 
of competent persons to act as assistants, who shall 
be subject to the foreman’s orders and shall be known 
as “assistant mine foreman,” or “shift bosses,” and 
they shall be under the direct supervision of the mine 
foreman and shall carry on the duties of the mine 
foreman as directed by him and as prescribed in other 
sections of these orders. 

(d) The mine foreman shall have charge of carrying 
out or directing the carrying out of his duties as pre¬ 
scribed in these orders; and any superintendent who 


Mine fore¬ 
man or as¬ 
sistants 
shall make 
two daily 
inspections 
of all under¬ 
ground 
working 
places. 


Assistant 
mine fore¬ 
men must 
be appointed 
when fore¬ 
man can not 
carry out 
provision of 
orders. 


Superintend¬ 
ent is liable 
if he orders 
violation of 
orders. 


26 


Mine Safety Orders . 


Personal 
injuries must 
be reported 
to manage¬ 
ment by em¬ 
ployees. 


Record must 
be kept of 
all injuries. 


Operator 
must take 
all reason¬ 
able precau¬ 
tions to pro¬ 
tect men. 

Dangerous 
places must 
be fenced 
off. 


Solitary 

employment 

forbidden. 


shall direct or cause a mine foreman to disregard 
the provisions of these orders shall be amenable in 
the same manner as the mine foreman. 

Order 1711. Report of Personal Injuries. 

(a) Every personal injury occurring in or about any 
mine, including electric shocks and burns, and all acci¬ 
dents in connection with the operation of electrical 
equipment, shall be promptly reported to the mine super¬ 
intendent’s office by the person injured, or, if such per¬ 
son shall be unable to do so by reason of the injury, then 
it shall be so reported by the person in immediate charge 
of the work at the time of the injury, or by some per¬ 
son acting on behalf of the injured person; and shall be 
recorded in the mine office. These records shall at all 
times be open to examination by the chief mining 
engineer or mining engineer. 

Order 1712. General Safety Precautions. 

(a) The operator and superintendent of every mine 
shall use every reasonable precaution to insure the safety 
of the workmen in the mine in all cases, whether or not 
provided for in these orders. 

( b ) The mine foreman shall see that all dangerous 
places are properly fenced off and proper danger-signals 
are so hung on such fencings that they may be 
plainly seen. 

( c ) No man shall be employed at a working face at 
such a distance from another that his cries in case of 
need can not be heard, unless he is in communication 
with another employee at least once every four hours. 


Industrial Accident Commission. 


27 


(d) All defects in or damage or injury to machinery Employees 
or timbering, or to apparatus and equipment generally in unsafe con- 
and about a mine, all unsafe or dangerous conditions in management, 
any part of a mine, and all accidents occurring in the 
course of mine operations, other than those of a purely 

minor character, even though not resulting in personal 
injury, shall be promptly reported to the mine foreman 
or superintendent by the person observing the same. 

( e ) Strangers or visitors shall not be allowed in any m^have 
mill or smelter, or underground in any mine without a permission 
proper permit from the office, unless accompanied by the mining 
operator or an official, or an employee deputized by such pr °P er b'- 
operator or official to accompany them. 

( f ) Only a bar blunt on one end shall be used 
for loading at chutes. 

(g) All spikes or nails with points projecting shall 
be bent down or removed from lumber lying in work¬ 
ing places or passage ways. 

( h ) Solitary employment in shaft retimbering is 
forbidden. 

(i) Oilers and inspectors only shall be allowed to 
ride on aerial tramways. 

(/) A boss or some responsible underground em¬ 
ployee shall be on duty whenever men are working 
in the mine. 

( k ) At all mines where in the opinion of the Indus- 
trial Accident Commission a serious fire hazard exists, required, 
monthly fire drills shall be held and all employees 
instructed as to their duties in case of a mine fire. 

The superintendent and foreman shall see to it that 
all underground employees are familiar with the mine 


28 Mine Safety Orders. 

exits and keep a record of the monthly fire drills, in 
the mine office. 

It is recommended that stenches be introduced into 
the compressed air line to warn underground men in 
case of a fire or “cave-ins.” (Ethymercaptan recom¬ 
mended as a stench.) Also that underground men be 
notified that such a warning will be given in case of a 
disaster. 

Order 1713. Orders for Underground Men to be 
Posted on Bulletin Boards. 

Sa'ety Safety bulletin boards shall be provided at all mines, 

boards Orders for underground men, safety bulletins, pictures, 

required. slogans or circulars shall be posted on such bulletin 

boards. 

Orders^ must Each workman employed in the mine, when first 
bulletin engaged, shall have his attention directed by the mine 
boards. superintendent or one of his assistants to the provi¬ 
sions of the orders, which apply to underground em¬ 
ployees. A notice shall also be posted in a conspicu¬ 
ous place to the effect that underground employees 
must read these orders and be governed by them. 

INDUSTRIAL ACCIDENT COMMISSION 
ORDERS FOR UNDERGROUND 
MEN. 

Violation of these orders constitutes a misde¬ 
meanor punishable by a fine of five hundred dollars 
or six months in jail, or both. 

1. When working above or below other men, you 
must always let the others know about it. 


Industrial Accident Commission. 


29 


2. It is forbidden to get off or on cage, skip or 
bucket while same is in motion. 

3. You must place drill steel or other material far 
enough from the collar of any shaft, manway, raise or 
winze to prevent danger of material falling down 
opening. 

4. Miners must not deepen holes, or any parts of 
holes, left standing or abandoned which have previously 
been charged with explosives. 

5. You must bar down all loose pieces of rock or 
ore before you start mucking or drilling in a working 
place. Test the ground several times during the shift. 
Always stand to one side when pulling or picking down 
loose rock. 

6. Examine closely any boulders or slab which you 
intend to drill, or to strike or break with hammer or 
pick. It may contain a drill hole filled with dynamite. 

7. You must not remove any flooring, lagging, or 
timber of any kind whatsoever, which would make a 
dangerous opening, without instructions from the boss. 

8. No person shall without authority handle electric 
wires or conductors, or electrical apparatus of any kind, 
or enter an electrical machine room or underground 
station. 

9. Caps and powder must immediately be put in a 
safe place and not left lying about the mine. 

10. Smoking when loading holes is strictly for¬ 
bidden. Lighted candles and lamps must be left out¬ 
side of powder magazine, and matches must not be 
lighted within the magazine. 


30 


Mine Safety Orders. 


11. In tamping powder, use only wooden loading 
sticks. Tamp by pressure. 

12. Do not try to extract explosives from a “missed 
hole.” When in doubt ask the boss. 

13. Before blasting give warnings in every direction. 

14. Report all “missed holes” as directed by the boss. 
In case of a “missed hole” do not return to your work¬ 
ing place until forty-five minutes after blasting. 

15. All accidents and injuries, however slight, must 
be reported to the foreman, or the superintendent’s 
office upon or before going off shift. 

16. If any employee drops any material or tools 
down the shaft, he shall immediately report the same, 
so the shaft may be inspected before continuing the 
regular work. 

17. If anything occurs, where you are working, that 
you do not understand, such as the movement of a 
large block of ground, you must stop work and immedi¬ 
ately tell the foreman or shift boss about it. 

18. Only men familiar with the mine shaft shall be 
allowed to ride on the bail of the skip. 

Remember that most accidents are caused by 
neglect of the little things, by disobeying rules and 
orders, or by carelessness. 

Order 1714. Fencing Abandoned Shafts. 

An act to provide for the covering or fencing of aban¬ 
doned mining shafts, pits or excavations, the 
penalty, and also the penalty for removing or de¬ 
stroying the covering or fencing from same. 

(Approved March 20, 1903.) 

Section 1. All abandoned mining shafts, pits or 
other abandoned excavations dangerous to passersby or 


Industrial Accident Commission. 


31 


live stock, shall be securely covered or fenced, and kept 
so, by the owners of the land or persons in charge of 
the same, on which such shafts, pits or other excava¬ 
tions are located. Any person or persons failing to 
comply with the provisions of this section shall be 
deemed guilty of a misdemeanor. 

Sec. 2. All abandoned mining shafts, pits or other Abandoned 
excavations situated on unoccupied public lands may be ^d^ther^ 
securely covered or fenced by order of the board of 
supervisors of the county wherein the same is situated, must be 
and it shall be the duty of the board of supervisors to covered, 
keep the same securely fenced or covered whenever it 
appears to them, by proof submitted, that the same is 
dangerous or unsafe to man or beast. The cost of said 
covering or fencing to be a county charge. 

Sec. 3. Any person or persons maliciously removing 
or destroying any covering or fencing placed around or 
over any shaft, pit or other excavation, as hereinbefore 
provided, shall be deemed guilty of a misdemeanor. 

Sec. 4. This act shall take effect six months from 
the day of passage. 

Order 1715. Guard Rails. 

(a) All machinery used in or about any mine, that, Moving^ 
when in motion, would be dangerous to persons coming stairs, tres- 
in contact therewith, such as engines, wheels, screens, sh?n b^'* 
shafting, gears, and belting, shall be guarded by cover- provided^ 
ing or railing so as to prevent persons from inadvert¬ 
ently walking against or falling upon the same. The 
sides of stairs, trestles, and dangerous plank walks, 
gangways, and platforms in and around the mines shall 
be provided with hand and guard railing to prevent 
persons from falling over the sides. This section shall 


32 


Mine Safety Orders. 


Camp to 
be kept 
clean. 


not forbid the temporary removal of a fence, guard rail, 
or covering for the purpose of repairs or other opera¬ 
tions, if proper precautions be used, and if the fence, 
guard rail, or covering be replaced immediately there¬ 
after. (See General Safety Orders on page 100.) 

( b ) See Order 1706 (c) of Mine Safety Orders. 

Order 1716. Waste Dump Tracks. 

(a) Waste dump tracks on the surface shall be kept in 
good condition and a bumper placed on end of each to 
prevent car rolling over the embankment. A proper 
runway for car men shall be provided. 

Order 1717. Camp Sanitation Act. 

An act regulating the sanitation and ventilation in and 
at camps where five or more persons are employed, 
and providing for a penalty for the violation thereof. 

(Originally adopted 1913; Statutes of 1913, page 328. Amended 
1915, page 497; 1919, page 244.) 

The act as amended to date reads as follows: 
Section 1. In or at any camp where five or more 
persons are employed, bunk houses, tents or other 
suitable sleeping places must be provided for all the 
employees. Such bunk houses, tents, or other sleeping 
places must be in good structural condition, and so 
constructed as to provide shelter to the occupants 
against the elements and so as to exclude dampness in 
inclement weather. The bunk houses, tents and other 
sleeping places shall be kept in a cleanly state, and 
free from vermin and matter of an infectious and 
contagious nature, and the grounds around such bunk 
houses, tents or other sleeping places shall be kept 


Industrial Accident Commission. 


33 


clean and free from accumulations of dirt, filth, gar¬ 
bage, and other deleterious matter. 

■SEC. 2. Every bunk house, tent or other sleeping Air space 
place used for the purpose of a lodging or sleeping jjjj s u e nk 
apartment in such camp, shall contain sufficient air 
space to insure an adequate supply of fresh air for 
each person occupying sudh bunk house, tent or other 
sleeping place. Suitable bunks or beds shall be pro- Bunks, 
vided for all employees. Such bunks or beds shall be 
made of steel, canvas or other sanitary material, and 
shall be so constructed as to afford reasonable comfort 
to the persons occupying the same. 

Sec. 3. Every mess house, dining room, mess tent, Kitchen, etc., 
... ... . , ... to be kept 

dining tent, kitchen, or other structure where food is clean. 

cooked, prepared or served in such camp shall be kept 

in a clean and sanitary state and the openings of such 

structures shall be screened. 

Sec. 4. For every such camp there shall be provided Bathing 

, . .. . . . . .... . facilities. 

convenient and suitable bathing facilities of a reason¬ 
able nature to suit conditions, which shall be kept in 
a clean and sanitary condition. For every such camp Toilet 
there shall be provided convenient and suitable privy 
or other toilet facilities, which shall be kept in a clean 
and sanitary state. A privy other than a watercloset 
shall consist of a pit at least two feet deep, with 
suitable shelter over the same, and the openings of 
the shelter and pit shall be enclosed by screening or 
other suitable fly netting. No privy pit shall be filled 
with excreta to nearer than one foot from the surface 
of the ground and the excreta in the pit shall be 
covered with earth, ashes, lime or other similar sub¬ 
stance. 


3-6163 


34 


Mine Safety Orders. 


Garbage 

disposal. 


Duty of 
employees. 


Commission 
of immigra¬ 
tion and 
housing to 
administer 
act. 


Sec. 5. All garbage, kitchen waste and other rubbish 
in such camp shall be deposited in suitable covered 
receptacles which shall be emptied daily or oftener if 
necessary, and the contents burned, buried or other¬ 
wise disposed of in such a way as not to be or become 
offensive or insanitary. All drainage from the kitchen 
sink shall be carried through a covered drain to a 
covered cesspool or septic tank or otherwise disposed 
of in such a way as not to become offensive or 
insanitary. 

SEC. 6. It shall be the duty of any person, firm, 
corporation, agent or officer of a firm or corporation 
employing persons to work in or at camps to which 
the provisions of this act apply and the superintendent 
or overseer in charge of the work in or at such camps 
to carry out the provisions of this act. At every such 
camp such owner, superintendent or overseer shall 
appoint a responsible person to assist in keeping the 
camp clean. 

Sec. 7. The commission of immigration and housing 
of California shall administer this act and secure the 
enforcement of the provisions thereof, and for such pur¬ 
poses shall have the right to enter and inspect all camps 
to which the provisions of this act apply. Any camp 
coming under the provisions of this act which does not 
conform to the provisions of this act is hereby declared 
a public nuisance and if not made to so conform within 
five days, or within such longer period of time as may 
be allowed by the commission of immigration and 
housing of California, after written notice given by the 
said commission, shall be abated by proper action 


Industrial Accident Commission. 


35 


brought for that purpose in the superior court of the 
county in which such camp, or the greater portion 
thereof, is situated. 

Sec. 8. Any person, firm, corporation, agent or Violation of 
officer of a firm or corporation, or any superintendent provisions - 
or overseer in charge of the work in or at any camp 
coming under the provisions of this act, who shall 
violate or fail to comply with the provisions of this 
act, is guilty of a misdemeanor, and shall upon convic¬ 
tion thereof, be punished by a fine of not more than Penalty, 
two hundred dollars,,or by imprisonment for not more 
than sixty days, or by both such fine and imprisonment. 

Order 1718. Change Houses. 

The operator of every mine shall provide a dressing 
room or a change house at a place convenient to the 
mine exit, for the purpose of drying the clothing of 
the persons employed in and about the mine and such 
dressing room or change house shall be provided with 
adequate means of heating and lighting. Such dressing 
rooms or change houses shall be available to the men 
at all times when they are going on or coming off 
shift and shall be equipped with shower baths with 
hot and cold water, at least one shower being provided 
for each fifteen men on a shift, working in the mine. 

Such change houses shall be kept reasonably clean and 
in a sanitary condition. 


36 


Mine Safety Orders. 


Drinking 
water 
must be 
furnished. 


Penalty. 


Under¬ 
ground 
toilets are 
required. 


Order 1719. An Excerpt from the Statutes and 
Amendments to the Codes of the State of Cali¬ 
fornia. 

An act to require employers of labor to furnish, without 
charge, pure drinking water to their employees 
during ivorking hours. 

(Approved May 24, 1915. In effect August 8, 1915.) 
Section 1. Every employer of labor in this state 
shall, without making a charge therefor, provide fresh 
and pure drinking water .to his employees during work¬ 
ing hours. Access to such drinking water shall be per¬ 
mitted at reasonable and convenient times and places. 

Any violation of the provisions of this act shall be 
deemed a misdemeanor and punishable for each offense 
by a fine of not less than twenty-five dollars ($25.00), 
nor more than one hundred dollars ($100.00), or by 
imprisonment for not more than thirty (30) days, or 
by both such fine and imprisonment. 

Order 1720. Sanitation, Dry Closets, Drinking Water. 

(a) It shall be the duty of the operator of every 
mine, for the purpose of improving the sanitation 
thereof and preserving the health of those employed 
therein, to provide an ample number of dry or water- 
closets upon all main working levels for the use of all 
men employed in the mine. Ready means of access to 
each closet shall be provided by the operator. No such 
closet shall be constructed without adequate provision 
for the effectual cleansing and removing of the contents 
thereof, which shall be removed and disposed of often 
enough to prevent its becoming offensive. It shall be 
the duty of the mine foreman to cause each closet to be 


Industrial Accident Commission . 


37 


supplied with some disinfectant or deodorizer to be 
sprinkled upon the contents thereof. It shall be the 
duty of all men employed within any mine where such 
closets are provided to use such closets exclusively 
when in the mine, and the neglect or failure of any 
man employed in a mine to use such closets when pro¬ 
vided shall constitute a violation of these orders; pro¬ 
vided, however, that this order shall not apply to any 
mine where the operator or superintendent prefers to 
permit the men to go to the surface, and requires the 
men to do so. 

( b ) It shall be the duty of the operator of every 
mine to provide a good quality of drinking water for 
the use of all men employed in the mine, a supply of 
which shall be provided on each main working level, 
and it shall be the further duty of the superintendent 
to cause such.supply of drinking water to be adequately 
protected from contamination. 

Order 1721. Providing for Mine Exits. 

An act requiring compensation for causing death by 
wrongful act, neglect or default. 

(Approved April 26, 1862.) 

Section 1. It shall not be lawful for any corpora¬ 
tion, association, owner, or owners of any quartz min¬ 
ing claim within the State of California, where such 
corporation, association, owner or owners employ 
twelve men daily, to sink down into such mine or mines 
any perpendicular shaft or incline beyond a depth from 
the surface of three hundred feet without providing a 
second mode of egress from such mine, by shaft or 


Good quality 
of drinking 
water shall 
be provided. 


Two exits 
required for 
mines more 
than 300 
feet deep. 


38 


Mine Safety Orders. 


Two escape- 
ways to sur¬ 
face must 
be provided. 


Some devel¬ 
opment work 
may be car¬ 
ried on with 
only one 
escapeway. 


tunnel, to connect with the main shaft at a depth of not 
less than one hundred feet from the surface. 

Sec. 2. It shall be the duty of each corporation, 
association, owner or owners of any quartz mine or 
mines in this state, where it becomes necessary to work 
such mines beyond the depth of three hundred feet, and 
where the number of men employed therein daily shall 
be twelve or more, to proceed to sink another shaft or 
construct a tunnel so as to connect with the main 
working shaft of such mine as a mode of escape from 
underground accident, or otherwise. And all corpora¬ 
tions, associations, owner or owners of mines, as afore¬ 
said, working at a greater depth than three hundred 
feet, not having any other mode of egress than from 
the main shaft, shall proceed as herein provided. 

Order 1722. Two Openings to Surface. 

(a) It shall be the duty of every operator of every 
mine, except as hereinafter provided, to maintain at 
least two outlets to the surface from such mine, or an 
underground communicating passageway between every 
such mine and some other neighboring mine, so that 
there shall be at all times at least two distinct and avail¬ 
able means of access to the surface to all persons em¬ 
ployed in such mine. Such outlets shall not be less 
than one hundred feet apart and shall not be covered 
by one building or by connecting buildings. 

( b ) No mine shall be worked to a greater depth than 
five hundred feet below a level which connects to both 
outlets from the mine. 

(c) Provided, however, that the above requirements 
shall not apply in the case of (1) shafts or mines in 
process of being connected, to comply with the terms 


Industrial Accident Commission. 


39 


of this section; (2) shafts, winzes, adit levels, tunnels, 
and drifts to prospect for and develop mineral sub¬ 
stances, but not for the extraction of mineral sub¬ 
stances, except such as may be extracted in the course 
of such prospecting and developing work; (3) any mine 
in which one of the shafts or outlets shall have tempo¬ 
rarily become unavailable for the persons employed in 
the mine, and in which every effort is being made by 
the operator of the mine to open such temporarily 
unavailable outlet, and provided the same is not, in the 
opinion of the Industrial Accident Commission danger¬ 
ous to the life and health of those employed therein; 

(4) mines having workings less than three hundred 
feet deep, but no mines opened primarily by an adit 
level or tunnel, and (5) mines opened by an adit level, 
tunnel, or drift less than one thousand feet in length; 
and provided, further, that mines opened by an inclined 
shaft of less than twenty degrees angle from the 
horizontal shall be considered for the purpose of this 
section as equivalent to mines opened by adit levels, 
tunnels, or'drifts. 

Order 1723. Openings Through Other Mines. 

(a) When a communicating outlet shall have been Escapeways 
, . . through 

established by agreement between contiguous mines or other mines 

mines not contiguous, the operator of neither mine shall cKd" 0 * be 
close the same, except temporarily in cases of extreme 
emergency, without the consent of both the other opera¬ 
tor, or owner, and of the Industrial Accident Commis¬ 
sion. When operators of such mines have by agreement 
established underground communication between said 
mines as an escapement outlet for the men employed in 
both, it shall be the duty of each operator to cause such 


40 


Mine Safety Orders. 


Upkeep of 
escapeways 
through 
abandoned 
mines, etc. 


communicating outlet within his respective mine to be 
inspected at least once in every seven days, and it shall 
be the duty of each operator to see to it, within his 
respective mine, that the same is kept clear of every 
obstruction to travel, and that intervening doors, if 
any, shall be kept unlocked and ready at all times for 
immediate use. 

( b ) In the event of failure or refusal on the part of 
one operator to keep such opening in safe condition, the 
other operator shall have access thereto for the purpose 
of repairing and maintaining the same; provided, how¬ 
ever, that when such an outlet shall have been estab¬ 
lished, each operator, unless it shall have been other¬ 
wise provided by agreement, shall pay a fair propor¬ 
tionate share of keeping such opening in such condition 
that men working in such mines may have access to the 
surface thereby; provided, further, that in the event of 
either operator desiring to abandon mining operations, 
the expense and duty of maintaining such communica¬ 
tion shall devolve upon the party continuing operations 
and using the same; provided, further, that in case one 
of such mines shall cease or suspend operations and 
there is danger of the mine still in operation being 
flooded by reason of the existence of such communi¬ 
cating outlet, the operator of such mine still working 
shall have the right to close such outlet upon giving 
notice to the owner or operator of the adjoining mine 
and to the chief mining engineer. 

Order 1724. Provisions Affecting Mines Having 
Only One Outlet. 

(a) In every mine, where under the provisions of 
orders 1722 and 1723 of these orders, only one outlet is 


Industrial Accident Commission. . 


41 


required and where a single shaft affords the only means Ladderway 

of ingress or egress to persons employed underground, mentsm'ust 

such shaft if more than two hundred feet deep shall be be main- 

c tamed in 

divided into at least two compartments. One of said shafts of 
compartments shall be set aside for use as a ladderway i n g but one 
and no hoisting conveyance shall be allowed therein. outlet - 
Whenever such ladderway compartment shall be covered 
by a nonfireproof building it shall be the duty of the 
operator of said mine to cause said ladderway to be 
securely bulkheaded at a point at least twenty-five feet 
below the collar of the shaft; and below this bulkhead 
a passageway shall be driven to the surface so as to 
have its outlet in no case less than thirty feet beyond 
the walls of the building covering the main shaft. The 
said passageway shall be equipped with a ladderway 
when necessary, as provided in subsequent rules, and 
shall be kept in good repair and shall afford an easy 
exit in the event of fire. Every mine opened by adit 
level or tunnel or by an inclined shaft or slope of less 
than twenty degrees angle from the horizontal, any of 
which less than one thousand feet in length, and hav¬ 
ing but one outlet, shall have a similar side outlet. 

Order 1725. Outlets Not to be Covered by Inflam¬ 
mable Houses. 

(a) After the approval of these orders no operator of inflammable 
. . ,, , , , structures 

any mine shall erect any combustible structure over the shall not be 

shaft, tunnel, or other mine opening, except head- mfne ed ° Vef 
frames necessary for hoisting from such shaft or other outlets, 
mine opening, and the hatch or door necessary for 
closing such shaft or other mine opening; provided, 
however, that a housing of noninflammable and fire¬ 
proof material may be erected over any shaft, tunnel, 


42 


Mine Safety Orders. 


or other mine opening to protect the men working at 
such point. 

( b ) When the portal of any mine opening or the collar 
of any shaft is covered by a nonfireproof building the 
operator of the mine shall provide a fireproof door, 
which shall be and fit as nearly gas tight as possible. 
Said door shall be installed in such a way that the 
mouth of such mine opening can be closed from the 
outside of the building by a pull wire or cable, in the 
event of fire. 


Ample ven¬ 
tilation shall 
be provided. 


19£ per cent 
oxygen 
required in 

mine air. 


Dangerous 
gas must 
be reported 
to chief min¬ 
ing engineer. 


Order 1726. Ventilation. 

(a) The operator of every mine, whether operated 
through shaft, slope, tunnel, adit level, or drift, shall 
provide and maintain for every such mine a good and 
sufficient amount of ventilation for such men and ani¬ 
mals as may be employed therein, and shall cause an 
adequate quantity of pure air to circulate through and 
into all the shafts, winzes, levels, and all the working 
places of such mine. 

( b ) Except in cases of emergency, men shall not be 
permitted to work in a place where the oxygen content 
of the air is less than 19per cent as determined by a 
Haldane black damp tester or by chemical analysis. 

(c) Inflammable gas shall be considered dangerous 
when it contains more than two per cent methane as 
shown by a Burrell gas detector or by a flame safety 
lamp approved by the United States Bureau of Mines. 

It shall be the duty of the superintendent of any 
mine to immediately notify the office of the chief 
mining engineer whenever dangerous gas, such as 
methane, is discovered. 


Industrial Accident Commission. 


43 


Where inflammable gas is encountered, sufficient air 
must be furnished so that the percentage of inflamma¬ 
ble gas shall not exceed two per cent unless special 
permission to continue operations has been obtained 
from the Industrial Accident Commission. 

Order 1727. Safety Pillars. 

(a) No stoping shall be done within twenty feet of a Special per- 
shaft that is used for hoisting men or material; pro- 
vided, however, that stoping may be done within twenty ^ aft 
feet of such shaft if the Industrial Accident Commis¬ 
sion has been first notified in writing and their approval 
secured. 

Order 1728. Roof Inspection. 

(a) In all mines where stoping is done, it shall be special in- 
the duty of the superintendent of the mine to detail a certain” 3 ° f 
competent man to make a frequent inspection of the roof 

of those parts of the.mine where men are employed, and 
said man so detailed shall be charged with the duty of 
dislodging any slabs of rocks in said roof that have 
become loose. While such dislodgment is being effected, 
the floor of the stope immediately beneath such loose 
rock shall be fenced off or otherwise adequately 
guarded; provided, however, that it shall be the duty of 
every miner to care for the roof of the place where he 
is working. In cases where the Industrial Accident 
Commission considers it necessary, this inspection shall 
be made at more frequent intervals, and in such man¬ 
ner, as may be directed. 

( b ) It shall also be the duty of the superintendent 
of every mine to cause frequent inspection to be* made 
of the roof of all drifts, adit levels, tunnels and gang¬ 
ways by a competent person detailed for such purpose. 


44 


Mine Safety Orders. 


Working 
places to 
be timbered 
when neces¬ 
sary. 


Sufficient 
timber to be 
supplied by 
operator. 


Miners shall 
not work 
when suffi¬ 
cient timber 
is not 
supplied. 


Order 1729. Cleaning of Manways. 

(a) The timbers in all manways in daily use shall be 
cleaned of loose rock lodged upon them as often as 
necessary to keep them in safe condition for the passage 
of men. Manways shall be kept clear of obstructions. 

Order 1730. Timbering. 

(a) Every shaft, incline, slope, adit, tunnel, level, 
crosscut, or drift, and every working place in the 
mine shall be, when necessary, kept securely timbered 
or protected to prevent injury to any person from 
falling material. It shall be the duty of the operator 
to carry out and enforce the provisions of this order, 
but nothing contained herein shall be construed to 
relieve the miner from the duty of caring for his own 
working place, save as hereinafter provided. 

( b ) It shall be the duty of the operator to see that all 
miners in the mine are supplied, at all times, with such 
timbers as are necessary to keep their working places 
in a safe condition. For the purposes of this and the 
succeeding orders the term “timbers” shall be held to 
include and mean all wood to be used by the miner. 

(c) If for any cause necessary timbers can not be sup¬ 
plied to any miner when required, it shall be the duty 
of the mine foreman to instruct the miner or miners 
to vacate all such working places until supplied with 
the timbers needed, but nothing contained herein shall 
be construed to relieve the operator of the duty of 
supplying such timbers. 


Industrial Accident Commission. 


45 


Order 1731. Winzes, Raises and Openings. 

(a) Winzes or other openings in the floor of a 
drift or stope shall be kept covered by a substantial 
hatch or bars, or shall be planked over, except when 
in use, or shall be barred off by a substantial rail¬ 
ing not less than three and one-half feet nor more than 
four feet above the level of the floor, or shall be pro¬ 
vided with a gangway on one side not less than twelve 
inches wide, which gangway shall have a substantial 
handrailing not less than three and one-half feet nor 
more than four feet above the floor, and the approaches 
to such gangway at either end shall be protected by a 
substantial railing not less than three and one-half feet 
nor more than four feet above the floor. 

( b ) Drifts used as manways intersecting overhead 
workings through which material is dropped shall be 
closed to the passage of persons by a substantial rail 
not less than three and one-half feet nor more than 
four feet in height above the floor of the drift, on each 
side of the working, whenever material is to be dropped 
through such working, and the drift shall be kept so 
closed during periods when the working is so in use. 

Order 1732. Shaft Protection. 

(a) At the top of all shafts and at all shaft stations, 
a gate, guard rail, or other protection subject to the 
approval of the Industrial Accident Commission shall 
be installed and kept in place except when the cage, 
skip bucket or other conveyance is being loaded or 
unloaded thereat. This order shall not forbid the tem¬ 
porary removal of the protection for the purpose of 
repairs or other operations if proper precaution to pre¬ 
vent danger to persons be taken. 


Tops of 
winzes and 
raises must 
ba protected. 


Drifts to be 
closed off 
when there 
is danger 
of falling 
material. 


Protection 
required 
at shaft 
stations. 


46 


Mine Safety Orders. 


Hatches pro¬ 
vided where 
bucket! used. 


Passageways 
around shaft 
at level 
stations 
and skip 
pockets. 


( b ) In shafts where the inclination from the hori¬ 
zontal is forty-five degrees or more, if hoisting be done 
from greater depth than one hundred feet by means of 
a bucket, shaft doors shall be constructed that will pre¬ 
vent any material from falling into the shaft while the 
bucket is being dumped, and such doors shall be closed 
while the bucket is being dumped. 

( c ) All stations, levels or skip pockets driven or 
constructed after these orders are adopted, shall have 
such a passageway around the working shaft that cross¬ 
ing through the hoisting compartment may be avoided; 
entering or crossing the hoisting compartment of a 
shaft except to ascend or descend, or for the purpose 
of inspecting or effecting repairs, is prohibited; before 
repairs are commenced the person in charge of or 
directing the repairs shall inform the hoisting engineer 
of the nature thereof. 

Order 1733. Places of Refuge. 

(a) On every mine level in which mechanical haulage 
is employed, there shall be at intervals of not more than 
two hundred feet places of refuge affording a space of 
at least two and one-half feet in width between the 
widest portion of the car or train running on the tram¬ 
way and the side of the haulage way. 

( b ) Every such place of refuge shall be kept con¬ 
stantly clear, and no refuse shall be placed therein, and 
no person shall in any way prevent access thereto. 

Order 1734. Protection Against Water. 

(a) No raise shall be allowed to approach within ten 
feet of any part of a winze, stope, or other opening in 
which there is a dangerous accumulation of water. 


Industrial Accident Commission. 


47 


( b ) When advancing a drift, adit level, or incline to- Bora holes 
ward a mine working that is suspected to be filled with lep^ajfead 
water, a bore hole shall be kept at least fifteen feet in of working^ 
advance of the breast of the drive when in the vicinity workings full 
of such mine working, and also, if necessary, in direc- of water * 
tions laterally from the course of the drive. Such a 
working place shall not exceed six feet in width, and 

such additional precautionary measures shall be taken 
as may be deemed necessary to obviate the danger of a 
sudden breaking through of water. 

(c) In every mine where, in the opinion of the Indus¬ 
trial Accident Commission there is danger of a sudden 
inburst of water, such additional raises, drifts, or other 
workings shall be constructed as are necessary, in the 
opinion of the Commission, to insure the escape of 
workmen from the lower workings. 

Order 1735. Stopes. 

(a) In stopes timbered with square setts the working 
floors shall be closely and securely lagged over. Open¬ 
ings in the floors shall be protected by railings, or 
gratings. 

Order 1736. Whims. 

(a) Whims in use at or in mines, shall be provided 
with a suitable stopper or some other reliable device to 
prevent running back of the bucket or other conveyance. 

Order 1737. Crossheads. 

(a) All vertical shafts more than three hundred feet 
deep, from which hoisting is done by means of a bucket, 
shall be provided with suitable guides, and in connection 


48 


Mine Safety Orders. 


Ladderways 
shall bo pro¬ 
vided from 
lowest 
workings 
to surface. 


Platforms 
required in 
ladderways. 


with the bucket there shall be a crosshead traveling 
upon these guides, provided men are hoisted through, 
or work in such shafts regularly. The height of the 
crosshead shall be at least two-thirds of its width. 

Order 1738. Ladders and Ladderways. 

It shall be the duty of the operator of every mine to 
provide in addition to any mechanical means' of ingress 
and egress, at least one means of outlet for the miners 
by means of ladders from the lowest workings of the 
mine to the surface. Except in the case of swinging 
or extension ladders used for shaft sinking, all ladders 
and ladderways constructed after the approval of these 
orders shall be built as prescribed in the following: 

(a) The distance between the centers of the rungs 
of a ladder shall not exceed fourteen inches and shall 
not vary more than one inch in any one ladderway. 
The length of the ladder rungs (width of ladder) shall 
not be less than twelve inches. 

( b ) The rungs of a ladder shall in no case be less 
than three inches from the wall or other obstruction in 
the shaft or opening in which the ladder shall be used. 

( c ) Every main ladderway with an inclination of 
more than seventy degrees from the horizontal, the dis¬ 
tance between the top and bottom of which is more 
than fifty feet, shall have substantial platforms at 
intervals of not more than thirty feet, measured ver¬ 
tically. Where the inclination of any ladder or section 
of a ladder, in main ladderways, exceeds eighty degrees 
from the horizontal, the sections of the ladders shall be 
staggered at each platform so that no section shall be 
directly in line with the section above or below it. 


Industrial Accident Commission. 


49 


( d ) The opening in any such platform shall be 
approximately twenty-one by twenty-four inches. 

( e ) Ladders shall project at least three feet above Hand holds - 
every platform in the ladderway and at least three feet 

above the collar of the shaft, unless convenient and 
secure hand holds are fixed at such places. 

(/) In ladderways, other than main ladder ways, not Vertical 
exceeding one hundred feet in depth or height, ladders 
may be fixed vertically. No vertical ladders shall be 
used with a greater height or depth than one hundred 
feet. 

( g ) Under no circumstances shall any ladder inclin¬ 
ing backward from the vertical be installed. 

( h ) Ladderways shall be provided in all shafts ^^ion 
steeper than sixty degrees from the horizontal in the chains re¬ 
course of sinking, to within such a distance from the sinking When 
bottom thereof as will secure them from damage by shafts * 
blasting. From the end of such ladderways, chain, wire 

rope or wooden extension ladders, or chains to reach 
to the bottom of the shaft shall be provided. 

Order 1739. Elimination of Rock Dust. 

(a) No operator or person in charge of any under- ^ustfrom 
ground mine shall cause to be drilled or bored by must be 
machinery, a hole or holes in any working place in mSequired 
ground that causes dust from drilling, unless said J® S p^ r tors 
machinery is equipped with a water jet or spray, or 
other means equally efficient are used to prevent the 


4—0103 


50 


Mine Safety Orders. 


Dust from 
chutes must 
be allayed 
or men re¬ 
quired to 
wear 

respirators. 


Dust in ore 
houses must 
be allayed 
or men 
required 
to wear 
espirators. 


inhalation of dust; provided, that when water jets or 
sprays are used, water free from pollution with organic 
or other noxious matter, shall be furnished. 

( b ) Every mine operator shall equip all chutes, from 
which dusty ore or rock is taken, with a sprinkler or 
other device with which to effectively dampen said ore 
or rock, to prevent the escape of dust into the air dur¬ 
ing removal; provided, that this equipment need not be 
installed if the loaders at said chutes are compelled to 
wear respirators. 

(c) Whenever a sprinkling device is installed at any 
chute for the purpose of preventing the escape of dust, 
it shall be so placed that it can be operated by the 
workmen loading cars from such chute. 

(d) Every ore house where dusty ore or rock is 
sorted shall be supplied at all times with suitable clean 
water, which shall be used for the purpose of sprinkling 
said ore or rock to allay the dust, or else men working 
in saief ore houses shall be compelled to wear respira¬ 
tors. 

Order 1740. Lighting and Candles. 

(a) No candle shall be left burning.in a mine or any 
part of a mine when the person using the candle shall 
depart from his work for the day. 


Industrial Accident Commission. 


51 


(b) Stationary lights shall be provided during the Stationary 
working hours at all shaft stations during the time the quiredat r ° 
same are in actual use, and also at all stations on the tSSls and"in 
levels where hoisting or hauling is effected by means P um P rooms - 
of machinery; also at night at all places on the surface 

where work is being conducted. 

(c) All places where hoisting, pumping or other 
machinery is erected, and in the proximity of which 
persons employed in the mine are working or moving 
about, shall be so lighted that the moving parts of such 
machinery can be readily distinguished. 

( d ) If carbide is stored underground it shall be kept Under¬ 
in metal containers, so placed that there will be no ftorage of 
danger of the stored carbide coming in contact with carbide - 
water. 

Order 1741. Inflammable Material. 

(a) It shall be the duty of the operator of every Require- 
mine in which oils and other dangerous inflammable “oJageof 
materials are used, to store such materials, or cause 
them to be stored, in a covered building kept solely for materials, 
such storage, which building shall be at least one hun¬ 
dred feet from any shaft, tunnel, or other mine opening, 
or building over a mine opening, and at least three hun¬ 
dred feet from any powder magazine; provided, that 
gasoline, naphtha, distillate, and fuel oils may be stored 
in a tank or tanks buried in the ground, which tank or 
tanks shall be provided with proper vents, and shall be 
placed at least fifty feet from any shaft, tunnel, or other 
mine opening, or building over a mine opening, and at 


5 2 


Mine Safety Orders. 


least three hundred feet from any powder magazine; 
and provided further, that lubricating oils may be 
stored in a well-constructed, covered building, which 
shall be at least fifty feet from any shaft, tunnel, or 
other mine opening, or building over a mine opening, 
and at least three hundred feet from any powder maga¬ 
zine. No tank shall be installed from which oil is to be 
conducted by gravity to the point of combustion, unless 
such tank shall be so located that escaping oil can not 
run over the surface from such tank to any building, 
within one hundred feet of any mine opening. 


Only three 
days' supply 
of oil is to 
be taken 
from storage 
place. 


Under¬ 
ground 
storage 
of oil. 


( b ) The man in charge of such building or tank or 
tanks, who shall be the superintendent or a person ex¬ 
pressly designated by him, shall permit only sufficient 
oil or other inflammable material to be taken from such 
building or tank or tanks to meet the requirements of 
paragraph ( c ) of this order. If any oil or gasoline 
storage be so situated that leakage would permit the 
oil or gasoline to flow within the above-specified dis¬ 
tances, means to prevent such flow must be provided. 

( c ) Oil, either lubricating or illuminating, shall not 
be taken into the underground workings of any mine 
or kept therein in quantities greater than necessary to 
afford three days’ supply, except when the transporta¬ 
tion and storage are arranged for in a manner satisfac¬ 
tory to the Industrial Accident Commission. 


( d ) The use of gasoline underground is forbidden 
except in small amounts such as is required for blow 
torches. 


( e ) The use of fuel burning engines or locomotives 
underground is forbidden. 


Industrial Accident Commission. 


53 


(/) Waste timber or old timber shall not be piled Waste raa- 
and permitted to decay in the mine but shall be removed be taken to 
from the mine promptly. Empty boxes, wooden chips, surface - 
paper and combustible rubbish of all kinds shall not be 
allowed to accumulate underground. 

( g ) Timber framing or storage sheds or any inflam- inflammable 

mable structure or piles of inflammable material shall Sallnot be 

not be placed or permitted to remain within one hun- 8t . ored near 

. . mine 

dred feet of any mine opening, shaft house or hoisting- openings. 

engine house; provided, however, that wooden head- 
frames for hoisting and lowering may be erected and 
operated, and wooden structures within one hundred 
feet of headhouses over or near shafts or openings, 
which have been return airways continuously for the 
past two years, need not be removed during the time 
the said shafts or openings continue to be return air¬ 
ways at all seasons. But if said shafts or openings 
should, for any reason, become intake airways at any 
time, then the foregoing part of this subdivision shall 
apply, provided that if fire and gas proof doors, 
approved by the Industrial Accident Commission be 
installed, exceptions may be made to the above pro¬ 
visions. 


(h) All inflammable material that may be stored in Inflammable 
any existing house or structure erected over any shaft, 
tunnel, or other mine opening shall be immediately 
removed, and such inflammable material shall not be 
stored within fifty feet of the exterior walls of such 
house or structure now existing, or that may hereafter 
be built. 


(t) All oily waste and waste of any kind used in j^y waste 

and about underground machinery shall be deposited in from 

, - , . underground, 

metal receptacles. 


54 Mine Safety Orders. 

Order 1742. Regulations Provided for Control of 
Explosives. 

An act relating to explosives and prescribing regula¬ 
tions for the transportation, storage and selling of 
explosives, and providing penalties for the violation 
of this act. 

(Approved March 20, 1911.) 

Definitions .Section 1. The term “explosive” or “explosives” 

application, whenever used in this act, shall include gunpowder, 
blasting powder, dynamite, guncotton, nitroglycerine or 
any compound thereof, fulminate, and every explosive 
substance having an explosive power equal to or greater 
than black blasting powder, and any substance intended 
to be used by exploding or igniting the same to produce 
a force to propel missiles, or rend apart substances, but 
does not include said substances, or any of them, in the 
form of fixed ammunition for small arms. The term 
“person” whenever used herein shall be held to include 
corporations as well as natural persons; words used 
in the singular number to include the plural and the 
plural the singular. The words “explosive manufac¬ 
turing plant” shall be understood to include all the land 
used in connection with the manufacture and storage 
of explosives thereat. 

Containers Sec. 2. Except only at an explosive manufacturing 
quired for plant, no person shall have, keep or store, at any place 
explosives. w ithin the state, any explosives unless such explosives 
are completely enclosed and encased in tight metal, 
wooden or fibre containers, and, except while being 
transported, or within the custody of a common carrier 
pending delivery to consignee, shall be kept and stored 
in a magazine constructed and operated as hereinafter 


Industrial Accident Commission. 


55 


described, and no person having in his possession or 
control, any explosives, shall under any circumstances 
permit or allow any grains or particles thereof to be or 
remain on the outside or about the containers, in which 
such explosives are contained. 

Sec. 3. Magazines in which explosives may lawfully 
be stored or kept shall be two classes, as follows: 

(a) Magazines of the first class shall consist of those Construction 
containing explosives exceeding one hundred pounds, and uon^nSree 
shall be constructed wholly of brick, wood covered with magazines, 
iron, or other fireproof material, and must be fireproof, 
and, except magazines where gunpowder or black blasting 
powder only is stored, must be bullet proof, and shall 
have no openings except for ventilation and entrance. 

The doors of such magazines must be fireproof and 
bullet proof, and at all times kept closed and locked, 
except when necessarily opened for the purpose of stor¬ 
ing or removing explosives therein or therefrom, by per¬ 
sons lawfully entitled to enter the same. Every such 
magazine shall have sufficient openings for ventilation 
thereof, which must be screened in such manner as to 
prevent the entrance of sparks or fire through the same. 

Upon each side of such magazine there shall at all times 
be kept conspicuously posted a sign, with the words, 
“Magazine,” “Explosives,” “Dangerous,” legibly printed 
thereon in letters not less than six inches high. No 
matches, fire or lighting device of any kind except 
electric light, shall at any time be permitted in any 
such magazine. No package of explosives shall at 
any time be opened in any magazine, nor shall any 
open package of explosives be kept therein. No blast¬ 
ing caps, or other detonating or fulminating caps, or 
detonators, or electric fuzees, shall be kept or stored 


56 


Mine Safety Orders. 


Construction 
and regula¬ 
tion of small 
magazines. 


Tunnels with 
iron doors 
may be used 
as maga¬ 
zines. 


Penalty. 


in any magazine in which explosives are kept or stored, 
but such caps, detonators or fuzees may be kept or 
stored in a magazine constructed as above provided 
which must be located at least one hundred feet from any 
magazine in which explosives are kept or stored. 
Magazines in which explosives are kept or stored must 
be detached, and must be located at least one hundred 
feet from any other structure. 

( b ) Magazines of the second class shall consist of a 
stout box, and not more than one hundred pounds of 
explosives shall at any time be kept or stored therein, 
and, except when necessarily opened for use by author¬ 
ized persons, shall at all times be kept securely locked. 
Upon each such magazine there shall at all times be kept 
conspicuously posted a sign with the words, “Magazine,” 
“Explosives,” “Dangerous,” legibly printed thereon. 

Nothing in this section contained shall be held to 
prohibit the keeping or storing of explosives in any 
tunnel, where no person or persons are employed; pro¬ 
vided , always, that any tunnel so used for the storage 
of explosives shall have fireproof doors, which must at 
all times be kept closed and locked, except when neces¬ 
sarily opened for the purpose of storing or removing 
explosives therein or therefrom, by persons lawfully 
entitled to enter the same. The door of such tunnel 
magazine shall at all times have legibly printed thereon 
the words, “Magazine,” “Explosives,” “Dangerous.” 

Sec. 4. Any person violating or failing to comply 
with any of the provisions of sections two and three of 
this act, shall be guilty of a misdemeanor, and upon 
conviction thereof, shall be punished by a fine of not 
less than twenty-five dollars, and not more than onj 


Industrial Accident Commission. 


■57 


thousand dollars, or by imprisonment not exceeding six 
months, or by both such fine and imprisonment. 

Sec. 5. It shall be unlawful to transport, carry or convey, 
any explosives between any places within this state, on any 
vessel, car or other vehicle of any description, operated by com¬ 
mon carrier, which vessel, car or vehicle is carrying passengers 
for hire; provided, that it shall be lawful to transport on any 
such vessel, car or vehicle, small arms ammunition in any quan¬ 
tity, and such fuses, toipedoes, rockets or other signal devices, 
as may be essential to promote safety in operation, and properly 
packed and marked samples for laboratory examination, not 
exceeding a net weight of one-half pound each, and not exceeding 
twenty samples at one time, in a single vessel, car or vehicle, 
but such samples shall not be carried in that part of the vessel, 
car or vehicle, which is intended for the transportation of 
passengers for hire; provided, further, that nothing in this 
section shall be construed to prevent the transportation of military 
or naval forces with their accompanying munitions of war on 
passenger equipment vessels, cars or vehicles; provided, further, 
that the transportation of explosives on any freight train in this 
state that carries passengers for hire in a car or caboose attached 
to the rear of such train, shall not be held or construed to 
violate the provisions of this act. 

SEC. 6. The railroad commission of this state is hereby em¬ 
powered to make, publish and promulgate such regulations as 
are not in conflict with this act and as in the judgment of said 
commission may tend to the safe packing, loading, storage and 
transportation of the explosives defined by section one of this act. 

Sec. 7. It shall be unlawful to transport, carry or convey 
liquid nitroglycerine, fulminate in bulk, in dry condition, or 
other like explosive between any places within this state, on 
any vessel, car or vehicle of any description, operated by com¬ 
mon carrier in the transportation of passengers, or articles of 
commerce by land or water. 

SEC. 8. Every package containing explosives or other danger¬ 
ous articles when presented to a common carrier for shipment 
shall have plainly marked on the outside thereof, the contents 
thereon, and it shall be unlawful for any person to deliver for 
transportation to any common carrier engaged in commerce by 
land or water, or to cause to be delivered or to carry any 


58 


Mine Safely Orders. 


explosive or other dangerous article, under any false or decep¬ 
tive marking, description, invoice, shipping order or other declara¬ 
tion, or without informing the agent of such carrier of the true 
character thereof, at, or before the time of such delivery or 
carriage is made. 

Sec. 9. Any person who wilfully violates or causes to be 
violated any of the foregoing provisions of sections 5, 6, 7, and 8, 
of this act, shall be deemed guilty of a misdemeanor, and upon 
conviction thereof, shall be punished for each offense by fine 
not exceeding two thousand dollars, or by imprisonment not 
exceeding eighteen months, or by both such fine and imprison¬ 
ment in the discretion of the court. 

Sec. 10. Every person selling, giving away, or delivering 
explosives within this state, shall keep at all times an accurate 
journal or book of record, in which must be entered from time 
to time, as it is made, each and every sale, delivery, gift, or 
other disposition made by such person in the course of business, 
or otherwise, of any quantity of such explosive substance. Such 
journal or record book must show in a legible handwriting, to 
be entered therein at the time, a complete history of each 
transaction, stating name and quantity of explosives sold, 
delivered, given away, or otherwise disposed of; name, place 
of residence, and business of the purchaser or transferee, name 
of individual to whom delivered, with his or her address. Such 
journal or record book must be kept by the person so selling, 
delivering or otherwise disposing of such explosives, in his or 
their principal office or place of business, at all times subject 
to the inspection and examination of the police authorities of 
the state, county, or municipality where same is situated, on 
proper demand therefor. In addition to keeping the record 
above provided, it shall be unlawful for any person to sell, give 
away, or deliver any explosives within this state, without taking 
from the person to whom such explosives are sold, given away 
or delivered within this state, a statement in writing, showing 
the name and the address of the person to whom such explosives 
are sold, given away or delivered, and the place where and the 
purpose for which such explosives are intended for use, which 
statement shall be signed by the person to whom such explosives 
are sold, given away or delivered, or his agent, and be witnessed 
by two witnesses, known to the person selling, giving away or 
delivering such explosives, to be residents of the county where 
such explosives, as shown by such statement, are intended for 


Industrial Accident Commission. 


59 


use, who shall certify that the person to whom such explosives 
are to be sold, given away or delivered is personally known to 
each of said witnesses, and that to the best of his knowledge 
and belief, the explosives are required by such person for the 
uses and purposes set forth in the statement, which said state¬ 
ment shall at all times be kept on file in the principal office or 
place of business of the person so selling, giving away or deliver¬ 
ing such explosives, subject to the inspection of the police 
authorities of the state, county or municipality where the same 
is situated, on proper demand made therefor; provided, that 
nothing in this section shall be held to apply to the delivery of 
explosives to any person or carrier for the purpose of being 
transported from a place within this state to any other place 
within this state; and provided, further, that nothing in this 
section contained shall apply to interstate commerce. 

Every person selling, giving away or delivering any explosives 
without complying with all the provisions of this section shall 
be deemed guilty of a misdemeanor, and upon conviction shall 
be fined not less than one hundred dollars, and not more than 
two thousand dollars, or by imprisonment of not less than six 
months, or by both such fine and imprisonment in the discretion 
of the court. 

In addition to such imprisonment and as cumulative penalty 
such person so offending shall forfeit for each offense, the sum 
of two hundred and fifty dollars, to be recovered in any court 
of competent jurisdiction, and the party instituting the action 
for such forfeiture shall not be entitled to dismiss same, without 
the consent of the court before which the suit has been 
instituted; nor shall any judgment recovered be .set aside, satis¬ 
fied or discharged save by order of such court, after full-pay¬ 
ment into court, and all moneys so collected must be paid to 
the party bringing suit. 

Sec. 11. (Repealed by Chapter 538, Laws of 1917.) 
SEC. 12. No person, except a peace officer or a per¬ 
son authorized so to do by the owner thereof, or his 
agent, shall enter any explosive manufacturing plant, 
magazine or car containing explosives in this state, and 
any person violating any of the provisions of this sec¬ 
tion shall be deemed guilty of a misdemean®r, and upon 


Only author¬ 
ized persons 
are per¬ 
mitted in 
magazines. 


60 


Mine Safety Orders. 


firearms 
shall not be 
discharged 
near 

magazines. 


conviction thereof, shall be fined in an amount not 
exceeding one thousand dollars, or by imprisonment not 
exceeding three months, or by both such fine and 
imprisonment. 

Sec. 13. No person shall discharge any firearms 
within five hundred feet of any magazine or of any ex¬ 
plosive manufacturing plant, and any person wilfully 
violating any of the provisions of this section shall be 
deemed guilty of a misdemeanor and fined not exceed¬ 
ing one thousand dollars, or by imprisonment not ex¬ 
ceeding one year, or by both such fine and imprison¬ 
ment. 

Sec. 14. No person shall wilfully carry any explosive on 
his person within this state in any car, vessel or vehicle that 
carries passengers for hire, or place or carry any explosive 
while on board any such car, vessel or vehicle, in any hand 
baggage, roll or container, or place any explosive in any baggage 
thereafter checked with any common carrier, and any person 
violating any of the provisions of this section shall be deemed 
guilty of a felony and upon conviction thereof shall be punished 
by imprisonment in the penitentiary not exceeding two years. 

Sec. 15. Nothing in this act contained shall prevent the 
operation of, or modify, alter, set aside or supersede the pro¬ 
visions of any municipal ordinance respecting the delivery, 
storing and handling of explosives. 

Sec 16. Nothing in this act contained shall regulate or apply 
to any shipment of explosives from a point within this state, 
consigned to a point without this state, over a line or lines 
of one or more common carriers. 

Order 1743. Storage and Use of Explosives. 

(a) No explosive shall be kept at any place within a 
mine where its accidental discharge would cut off the 
escape of miners working therein. 


Industrial Accident Commission. 


61 


( b ) All explosives within the mine shall be kept in Explosives 

stout, tight boxes with hinged lids and locks, from kept in 

which the explosives shall be removed only as required b 0 0 c x k e e 3 d or 

for immediate use; provided, that explosives stored in ™kf 3zine3 

underground magazines constructed as provided for in underground. 

the subsequent parts of this order need not be kept in 

such boxes. It shall not be permitted to keep such Explosives 
, . . , , . , must not be 

boxes containing explosives near any electric conductors kept near 

or in any manway or haulageway, or to permit any grains conductors, 
or particles of such explosives to be or remain on the 
outside or about the containers in which such explosives 
are held. Black blasting powder and high explosives 
shall not be kept in the same box. This paragraph shall 
not be construed as applying to electric lights within the 
magazine at a distance not less than five feet from the 
explosives. 

( c ) Not more than one hundred pounds of explo¬ 
sives shall be kept in any one leval at any one time, 
except that one day’s supply of explosives may be stored 
in an underground magazine, from which supplies re¬ 
quired for immediate use shall be distributed by an 
authorized and competent person or persons. Such 
underground magazines may consist of a separate drive 
or chamber, the walls of which shall be of fireproof 
material or of wood covered with sheet iron. The Magazines 
entrance to such underground magazine shall be kept Ucked. 0 kept 
securely locked, except when it has to be entered by 

the person or persons in charge thereof. In cases where 
in the opinion of the Industrial Accident Commission 
greater safety will be provided by the storage of more 
than one day’s supply of explosives underground, per¬ 
mission may be secured by the operator for the con¬ 
struction of a suitable underground magazine. 



62 


Mine Safety Orders. 


Magazines 
must be 
kept clean 
and dry. 


Caps must 
not be kept 
with powder 
underground. 


Powder 
boxes must 
not be 
opened in¬ 
side the 
magazine. 


Thawing 

dynamite. 


( d) Magazines shall at all times be kept clean and 
dry and free from grit. Before any alterations are 
made to any part thereof, all explosives shall be care¬ 
fully removed and the magazine thoroughly washed out. 
All tools and instruments used in making repairs shall 
be of wood, copper, brass or other soft metal or 
material. In no case shall nails or screws be driven 
into a magazine or into material that has once formed 
a part of a magazine, and all wooden parts discarded 
shall be burned in a safe place immediately. 

(?) No detonator shall be stored within fifty feet of 
other explosives underground. 

No detonator shall be taken into any magazine con¬ 
taining other explosives. 

No detonator shall be transported with other explo¬ 
sives except when being carried to the face for imme¬ 
diate use. 

(/) All primers and capped fuses shall be exploded 
within thirty-six hours after making. This does not 
include delay action electric exploders. 

Detonators shall not be removed from original con¬ 
tainers except as they are used for capping fuses. 

( g ) When supplies of explosives or fuse are removed 
from a magazine, those that have been longest in the 
magazine shall be taken first. Packages of explosives 
shall be removed to a safe distance from the magazine 
before being opened, and no such packages shall be 
opened with any metallic instrument, except a copper 
or bronze instrument. 

( h ) Every mine thawing dynamite or other explo¬ 
sives containing nitroglycerine shall be provided with a 
separate place for that purpose on the surface, or with 
a special underground chamber, which shall be a sepa- 


Industrial Accident Commission. 


63 


rate drift or crosscut, arid it shall be prohibited to thaw 
explosives in any other place or in any other manner 
than as provided for in this order. 

(*) Dynamite or other explosives containing nitro¬ 
glycerine shall not be thawed by any means other than 
a steam bath or a hot-water device, or by manure, or 
by electric current. If steam or water be the agent 
employed, the stove, boiler or other primary source of 
heat shall not be nearer to the thawing room than ten 
feet. If electric current be the thawing agent, the cur¬ 
rent shall not be brought within five feet of the explo¬ 
sive to be thawed, and in no case shall these explosives 
while being thawed, be exposed to a temperature higher 
than eighty degrees F. 

Thawing dynamite or other explosive containing 
nitroglycerine by placing it near a fire or near a steam 
boiler is prohibited. 

Dynamite or other explosive containing nitroglycerine 
shall not be thawed by direct contact with steam. 

(/) Explosives shall not be carried underground on 
an electric locomotive and no one except the train 
crew or powdermen shall be allowed to ride on a train 
carrying explosives. 

( k ) Explosives shall not be placed or left within five Special 
feet of live electric wires. precautions. 

(/) No person shall remove any explosive from a Remova ] 0 f 
mine or magazine without the written or verbal orders ex P losives - 
of the superintendent, foreman or shift foreman of the 
mine. 

(m) Fire extinguishers or hydrants and hose shall Fire 
be provided and kept ready near all powder magazines protectlon ' 
and underground powder distributing stations for use 
in case of fire outside the magazine. 


64 


Mine Safety Orders. 


Smoking. 


Combustible 

substances. 


Rate of 
burning. 


Notice 

posted. 


Water¬ 

proofing. 


Capping. 


Injured 
fuse. , 


(n) Smoking in a powder magazine, at a powder dis¬ 
tributing station, or while handling powder, is strictly 
forbidden. 

( o ) Oils or other combustible substances shall not 
be kept or stored in, or nearer than one hundred feet 
to, an underground powder magazine or distributing 
station. 

Order 1744. Fuse. 

(a) At any mine, no fuse shall be used that burns 
faster than one foot in thirty seconds or slower than 
one foot in fifty-five seconds. 

( b) Notice shall be posted at the entrance of every 
mine stating the rate of burning of the fuse used in 
such mine. The superintendent shall be responsible for 
the carrying out of this order. 

(c) The use of oil or grease to waterproof joints 
between cap and fuse is forbidden. These injure the 
fuse. Use a compound which will not injure the fuse. 

(d) In capping fuse, at least one inch shall be cut 
from the end of each coil of fuse to be used in blasting. 
This will prevent damp fuse ends from getting into the 
cap. 

(e) Only a crimper shall be used for attaching fuse 
to blasting cap. The practice of crimping with knife 
or teeth is forbidden. The mine operator shall furnish 
and keep in accessible places, ready for use, crimpers 
in good repair. 

( f ) It is forbidden to use fuse that has been ham¬ 
mered or injured by falling rocks or from any other 
source. Such injury increases the rate of burning. 

(g) In cold weather warm fuse slightly before un¬ 
coiling, to avoid broken or cracked fuse. 


Industrial Accident Commission. 


65 


( h) Fuse shall not be stored underground for a Special pre- 
longer period than seventy-two hours unless the storage ^storage 
place is perfectly dry and the relative humidity of the require- 
air is less than eighty per cent. The hanging of fuse 
on nails or other projections, which causes a sharp bend 
to be formed in the fuse, shall be prohibited. 

Order 1745. Blasting. 

(a) Bosses or shot firers shall be in immediate charge Bosses to 
of, and responsible for, blasting within the mine. It is 
forbidden to use anything but wooden tamping rods, 

with no metal parts, in tamping explosives or tamping 
material in the bore holes, and it shall be the duty of 
the bosses or shot firers to see that no metal tools are 
used for tamping. Detonators, when used in firing 
blasts, shall be of not less strength than No. 6, contain¬ 
ing one gram of fulminating composition. It shall be 
the duty of the mine foreman to fix the time of all 
blasting and firing. Bosses or shot firers and miners 
about to fire shots shall cause warnings to be given in 
every direction, and all entrances to the place or places 
where charges are to be fired shall be guarded, so far 
as possible. 

( b ) The number of explosions in every blast, except Missed holes 
in cases of simultaneous firing, shall be counted by the reported, 
man firing the same, and if the total number of explo¬ 
sions is less than the number of charges fired, a report 

of the discrepancy shall be made as the superintendent 
shall direct. When a blast has been fired and it is not 
certain that all the charges have exploded, no person 
shall enter the place where such charges were placed 
within forty-five minutes after the explosion. 


5-6163 


66 


Mine Safety Orders. 


Explosives 
shall not be 
extracted 
from missed 
holes. 


Precautions 
for electric 
firing. 


( c ) No miner shall be permitted to extract or 
attempt to extract explosives from a bore hole that has 
once been charged, but shall, when possible, put in a 
new primer and blast again. When not possible to do 
this, a new hole may be drilled, which shall not be 
nearer to the original hole than two feet, and shall be 
pointed at such an angle as to eliminate all danger of 
its meeting or coming closer to the other hole than two 
feet, and such new hole shall be charged with a fresh 
charge of explosives and then detonated; provided, that 
when the above can not be complied with, a hole nearer 
than two feet may be drilled under the direct super¬ 
vision of the shift boss. 

( d ) When electricity is used to fire shots, it shall not 
be permitted for any person knowingly to enter the 
vicinity of the place where such shots have been fired, 
until the cable from the source of electrical energy to 
the face of the blast shall have been disconnected. It 
shall be the duty of the boss or shot firer to see that 
all such cables are disconnected immediately after such 
firing, and to examine or direct the examination of such 
place where shots have been fired before any men are 
permitted to work therein. 

( e ) It shall be the duty of the boss or shot firer to 
see that special precautions are taken against the shot¬ 
firing cables or wires coming into contact with the 
lighting, power, or other circuits, or with any metal 
pipe lines. All portable devices for generating or sup¬ 
plying electricity for shot firing shall, when in the mine, 
be in charge of a boss or shot firer. No person other 
than a boss or shot firer shall connect the firing machine 
or battery to the shot-firing leads, and such connection 


Industrial Accident Commission. 


67 


shall not be made until all other steps preparatory to 
the firing of a shot shall have been completed, and the 
men removed to a safe distance. The primary or sec¬ 
ondary batteries used for shot firing shall be provided 
with a suitable case in which all contacts shall be made 
or broken, except that the binding posts for making 
connections to the firing leads may be outside. These 
binding posts shall be completely covered with insulat¬ 
ing material of a permanent character, such as hard 
rubber, fiber, etc., except at the points where the firing 
leads make connections with the binding posts. Such 
batteries shall be provided with a detachable plug or 
key without which the detonating circuit can not be 
closed, or provided with one or more safety contact 
buttons that are well countersunk or protected by a 
non-conducting housing. The plug or key shall be 
detached when not actually in use for firing a shot, and 
shall not, under any circumstances, pass from the cus¬ 
tody of the boss or shot firer. 

(/) Electricity from light or power circuits shall not 
be used for firing shots in a mine, except where the 
electrical connections to such light or power circuits are 
made within an inclosed switch box, which shall be 
kept securely locked and shall be accessible only to the 
authorized boss or shot firer. 

(g) No man shall “spit” more than fifteen fuses at 
one time, and should it be necessary to blast a greater 
number of holes than fifteen, he must have assistance. 

(h) Instantaneous electric caps shall not be used in 
the same round with delay action caps. 

(t) Machines and all metal tools shall be removed 
from the immediate location of holes before explosives 
are delivered. 


68 


Mine Safety Orders. 


Speed of 
hoisting 
men. 


Superintend¬ 
ent shall 
determine 
number of 
men to ride 
on cage, 
skip or 
bucket. 


(/) Except when single sticks are used, at least one 
cartridge or stick of powder (more is not objectionable) 
shall be tamped in the bottom of the hole before the 
primer cartridge is inserted. 

( k ) Electric exploders only shall be used in shaft 
sinkings, except when such use is not feasible. 

Order 1746. Hoisting. 

(а) The superintendent of the mine shall establish 
for each shaft, rates of speed for the cages, skips, 
buckets, or other conveyances that shall not be exceeded 
in the hoisting or lowering of men, and he shall post a 
notice of such limitation in a conspicuous place near 
each hoisting engine. 

(б) The superintendent of the mine shall determine 
the maximum number of men that in his judgment may 
safely ride on each cage, skip, bucket, or other convey¬ 
ance used in the mine under his supervision, and shall 
post in a conspicuous place near each shaft, a notice 
stating the maximum number of persons so permitted 
to ride and forbidding the carrying of any greater 
number. At the beginning of each shift, the mine fore¬ 
man or shift boss, or some other responsible person 
appointed by the superintendent, shall be stationed on 
the loading platform at the top of the shaft and shall 
prevent any greater number of men than that permitted 
by order of the superintendent to enter upon or into 
any cage, skip, bucket, or other conveyance, and he 
shall remain at this station until the last man about to 
descend the shaft shall have entered the cage, skip, 
bucket, or other conveyance. At the end of the shift 
the man in charge of work on each level of the mine 
from which men are to be hoisted shall post himself in 


Industrial Accident Commission. 


69 


the station of the shaft at that level and shall prevent 
any greater number of men than the maximum per¬ 
mitted by the superintendent of the mine to enter upon 
or into any cage, skip, bucket, or other conveyance and 
shall remain in this station until the last man to ascend 
shall have entered upon or into the cage, skip, bucket, 
or other conveyance; provided, that when a conductor 
is employed as required by paragraph (c) of this order, 
the man in dharge of each level need not remain until 
all men are hoisted. 

( c ) In every mine operated on two or more levels in 
which twenty-five or more men are employed under¬ 
ground on any one shift, and in which men to the num¬ 
ber of twenty-five are hoisted or lowered by cage or 
other conveyance other than a bucket, such cage or 
other conveyance shall be operated under the charge of 
a person appointed as conductor, and no person other 
than this conductor shall give any signal for the move¬ 
ment of the cage, skip, or conveyance. The aforesaid 
conductor shall have all necessary authority to prevent 
crowding or scuffling of men in the vicinity of the shaft. 

( d ) In hoisting or lowering men with a bucket, the 
speed, except in the case of apprehended danger, shall 
not exceed two hundred feet per minute when the 
bucket is within one hundred feet of the surface or 
bottom, or five hundred feet per minute in any other 
part of the shaft. 

( e ) In inclined shafts where men are hoisted, the 
use of wooden rails or the use of strap iron on wooden 
stringers to form skip tracks is forbidden, unless said 
strap iron is bolted in place at the joints, or equivalent 
safety precautions be taken. When strap iron is used 
and the live load exceeds 2,500 pounds or the hoisting 


Cager or 
skip tender 
shall be 
employed. 


Speed of 
hoisting 
with bucket 
limited. 


Skip 

tracks. 


70 


Mine Safety Orders. 


Special pre¬ 
cautions for 
inclined 
shafts. 


Competent 
hoisting 
engineers 
shall be 
appointed, 
and must 
undergo a 
physical 
examination. 


speed exceeds 250 feet per minute said strap iron shall 
be at least one-half inch by two inches. 

( f ) In inclined shafts where the dip exceeds thirty- 
five degrees from the horizontal and men are hoisted 
in skips, the space between the hoisting compartments 
at each level station shall be so closed by lining boards 
that it shall be impossible for men to walk on the 
dividers when getting into or out of the skip, or an 
iron bar (of approximately one-half inch diameter and 
of a length equal to at least twice the distance between 
the wall plates) shall be so placed as to give men an 
easy and secure overhead hand hold while walking on 
the divider. 

(g) No open hook shall be used with a bucket, cage 
or skip in hoisting, but some approved form of safety 
hook or shackle hook shall be used. 

(Zi)-The superintendent of the mine shall be respon¬ 
sible for the enforcement of the provisions of this 
order. 

Order 1747. Hoisting Engineers. 

(a) It shall be the duty of every superintendent of 
every mine having a hoisting engine, to appoint and 
designate one or more men, who shall be able to speak 
and read the English language readily, to be known as 
hoisting engineers. The superintendent of each mine 
shall cause each hoisting engineer in his employ to 
undergo a thorough physical examination at least once 
in each year. Such examinations may be made by any 
competent physician authorized to practice medicine in 
California. In each instance a copy of the physician’s 
findings shall be filed with the superintendent of the 
mine. No hoisting engineer who, in the opinion of the 


Industrial Accident Commission. 


71 


mine superintendent, is physically unfit to perform his 
duties, shall be permitted to hoist or lower men. At 
all shafts where men are hoisted or lowered, such 
hoisting engineers shall be not less than twenty-one 
years of age, and at shafts where men are not so 
hoisted or lowered, they shall be not less than eighteen 
years of age. It shall be the duty of every super¬ 
intendent to appoint as hoisting engineers men who 
are familiar with the details and working of a hoist¬ 
ing engine, and except in cases of emergency, to 
permit no others than such duly appointed hoisting 
engineers to run such engine or hoisting machinery; 
except that, by and with the consent of the superin¬ 
tendent, learners may be taught the operation of the 
hoisting engine at such times and under such restric¬ 
tions as the superintendent may determine to be free 
of risk to life and limb. 

Order 1748. Duties of Hoisting Engineer. 

The following orders shall be observed by every hoist¬ 
ing engineer employed within this state: 

(1) It shall be the duty of every hoisting engineer 
to keep a careful watch over his engine and over all 
machinery under his charge. 

(2) He shall at all times be in immediate charge of 
his engine, and shall not at any time delegate any of 
his duties to any other person, except to learners duly 
designated as provided in these orders; provided, how¬ 
ever, that nothing herein contained shall be construed 
to prevent any hoisting engineer from delegating to or 
sharing his duties with any other duly appointed hoist¬ 
ing engineer, or turning over the engine and machinery 


72 


Mine Safety Orders. 

in his charge to any other such engineer at the end of 
his shift. 

(3) He shall familiarize himself with and use all 
signal codes for hoisting and lowering as directed to be 
used in these orders. 

(4) He shall not run his engine unless the same is 
properly provided with brakes, indicators, or distance 
marks on hoisting ropes or cables, as provided in these 
orders. 

(5) It shall be the duty of the hoisting engineer to 
exclude every person from his engine room, excepting 
any person or persons* whose duties require their pres¬ 
ence therein, and visitors authorized by the superin¬ 
tendent of the mine. 

(6) He shall hold no conversation with any one 
while his engine is in motion, or while attending to 
signals. 

(7) He shall run his engine with extreme caution 
whenever men are being hoisted or lowered. 

(8) He shall not hoist men out of, or lower men 
into, any mine or shaft, at a speed greater than the rate 
posted in the engine room by the superintendent of the 
mine. 

(9) He shall inspect all hoisting machinery and 
safety appliances connected therewith, when and as 
directed by the mine superintendent, and shall report 
to him any defects found therein. 

(10) After any stoppage of hoisting for repairs or 
for any other purpose, exceeding in duration twenty- 
four hours, he shall run a bucket, skip, cage, or other 
conveyance, on which no men shall ride, except for 
purposes of inspection, up and down the working part 


Industrial Accident Commission. 


73 


of the shaft at least once, and shall not permit the 
bucket, skip, cage, or other conveyance to be used for 
hoisting or lowering men, until the hoisting machinery 
and shaft shall have been found to be in safe condition. 

(11) He shall not land the bucket, skip, cage or 
other conveyance at the top of the shaft, but must 
hang the said conveyance at least ten feet above the 
collar of the shaft, or above any level before leaving 
his post. 

(12) He shall familiarize himself with and carry out 
the requirements of all orders pertaining to the discharge 
of his duties. 

(13) The superintendent shall post a copy of this 
order in a conspicuous place on the door of the engine 
house. 

(14) Whenever men are working in a place to which 
they have been lowered by mechanical power, an engi¬ 
neer or a substitute must remain within hearing of the 
telephone and signal gongs while the aforesaid men 
remain in their working places. 

(15) Hoisting engineers shall not permit the oilers 
to oil the engine while in motion, ‘and shall exercise 
every care for the oilers’ safety. 

Order 1749. Safeguards Against Overwinding. 

(a) The sheave carrying the hoisting rope shall be 
placed upon a headframe so designed as to resist a pull 
in the direction of the hoisting engine greater than the 
breaking stress of the hoisting rope employed. 

( b ) Some provision against overwinding, approved 
by the Industrial Accident Commission, shall be installed 
whenever the same will safeguard life. 


Headframe 
shall be of 
ample 
strength. 


74 


Mine Safety Orders. 


Signal to 
warn hoist¬ 
ing engineer 
shall be 
used. 


Such signal 
is not re¬ 
quired if 
automatic 
overwinding 
device is 
used. 


(c) The operator of every mine having a shaft over 
five hundred feet deep through which men are hoisted 
daily shall install a device which shall give a warning 
signal in the engine room whenever the cage or skip 
in ascending reaches a point one hundred feet below the 
collar of the shaft. The warning signal required by 
the terms of this section need not be installed if the 
hoisting engine be equipped with a device that will 
automatically stop the engine if the cage, skip or man 
car passes a certain point; and provided , further, that 
such automatic stopping device be kept constantly in 
good working order. 


Metal hoist¬ 
ing ropes 
are required. 


Hoisting 
ropes or 
cables shall 
have factor 
of safety 
as given in 
table. 


Order 1750. Hoisting Ropes. 

(a) No operator of any mine shall use any rope or 
cable for hoisting or lowering men when such hoisting 
or lowering is done by any means other than human or 
animal power, unless such rope or cable shall be com¬ 
posed of metal wires, with a factor of safety determined 
as hereinafter set forth; provided, however, that such 
metal wires may be laid around a hemp center. 

( b ) The factor, of safety of all such ropes or cables 
shall be calculated by dividing the breaking strength of 
the rope as given in the manufacturer’s published tables, 
by the sum of the maximum load to be hoisted, plus the 
total weight of the rope in the shaft when fully let out. 

Hoisting rope safety factors for various depths of 
shafts shall conform with the table as given below: 


Length of rope 
(vertical or incline) 

500 feet or less_ 

500 to 1000 feet_ 

1000 to 2000 feet_ 

2000 to 3000 feet_ 

3000 feet and more_ 


Minimum 
factor of 
safety 
for new 
rope 

8 

7 

6 

5 

4 


Minimum 
factor of 
safety 
when rope 
must be 
discarded 
6.4 


4.3 

3.6 






Industrial Accident Commission. 


75 


(c) No head or angle sheave of a diameter less than Use of small 

• • • shcHvcs is 

sixty times the diameter of the rope shall be used for forbidden. 

hoisting or lowering men when the included angle made 
by such rope at the sheave is ninety degrees or less. 

( d) There shall not be used any rope or cable for Worn cables 

. .. . . . , , shall be 

the raising or lowering of men, either when the number promptly 

of breaks in any running foot of said rope exceeds ten dlscarded - 
per cent of the total number of wires composing the 
rope, or w<hen the wires on the crown of' the strands 
are worn down to less than sixty per cent of their 
original area, or when the superficial inspection pro¬ 
vided for in this section shows marked signs of corro¬ 
sion. In all shafts containing acid waters, some acid- 
free preservative shall be regularly used upon the ropes. 

(e) All ropes used for hoisting or lowering men Hoisting 
shall be thoroughly inspected once in every week by be regularly 
some competent person designated for that purpose by inspected - 
the superintendent. If upon any inspection, such hoist¬ 
ing rope or cable shall be found to be below the require¬ 
ments set forth in this section, it shall be disused for 

such purpose forthwith. 

(/) Every rope used for hoisting or lowejing men foisting 
shall be securely fastened at both ends, and when in rope must 

a l wa yg J*0« 

use shall never be fully unwound; at least two full ma i n on 
turns shall remain always on the drum or reel. The drura ' 
end of the rope attached to the conveyance in the shaft 
shall either be securely fastened within a tapered socket 
or else it shall be bound around an oval thimble and 
then fastened to itself by splicing or by the use of three 
or more clamps. 

( g ) The superintendent shall cause an examination to 
be made once in every succeeding three months of all 


76 


Mine Safety Orders. 


hoisting rope or cable in use for hoisting and lowering 
men and materials, by cutting off from the lower end of 
such rope a section not less than five feet in length, and 
having such section examined carefully both externally 
and internally for crystallization, corrosion and breaks. 


Bonneted 
cages are re¬ 
quired in ver¬ 
tical shafts. 


Construction 
of man 
cages or 
skips. 


Order 1751. Cages for Hoisting Men. 

(a) No operator of any mine shall permit the hoist¬ 
ing or lowering of men through a vertical shaft deeper 
than fifty feet, unless an iron-bonneted safety cage 
or skip be used for the hoisting and lowering of such 
men, but this provision shall not apply to shafts in 
process of sinking. 

( b ) It shall be the duty of the operator to have all 
cages or skips in which men are hoisted and lowered, 
used in vertical shafts over fifty feet deep, constructed 
as follows, or in a manner equally safe: The bonnet 
shall be of two steel plates three-sixteenths of an inch 
in thickness, sloping toward each side, and so arranged 
that they may be readily pushed upward to afford 
egress to persons therein, and such bonnet shall cover 
the top of the cage or skip in such manner as to pro¬ 
tect persons on it from objects falling in the shaft. 
The cage or skip shall be provided with sheet iron or 
steel side casing not less than one-sixteenth of an inch 
thick, or with a netting composed of wire not less than 
one-sixteenth of an inch in diameter. The maximum 
size of openings of wire netting in any direction shall 
not be greater than two inches, and not less than five 
feet in height, and with gates of not less than four and 
one-half feet in height, and made of such materials as 
specified for the side casing, either hung on hinges or 
working in slides. Every man cage shall have overhead 


Industrial Accident Commission. 


77 


bars of such arrangement as to give every man thereon 
an easy and secure handhold. Every cage or skip used 
in such shafts shall be provided with safety catches of catchL re¬ 
sufficient strength to hold the cage or skip with its Quired in 
• • , , , . , vertical 

maximum load at any point in the shaft in the event shafts. 

that the hoisting cable should break. 

(c) It is expressly forbidden to place boards across JJJJJjJ. 
the tops of skips and permit men to ride thereon. It ment - 
is also forbidden to permit men to stand on the edges 

of the tops of such skips for the purpose of being 
hoisted or lowered. The superintendent shall designate 
the number of men who may safely ride on the bail of 
a skip in inclined shafts and this number shall not be 
exceeded. 

(d) The conductor, cage tender or cage rider required JjSist be 68 
by the terms of order 1746 (c) shall, when men are closed - 
being hoisted and lowered, see that the gates of the 

cage are closed before giving the signal to move the 
cage and shall be responsible for their closing. 

( e ) No person shall be permitted to ride upon or 
below any cage, car, skip or bucket that is loaded with 
powder, except for the purpose of unloading such 
powder. 

Order 1752. Oiling Cage Safety Catches, Etc. 

(a) The safety catches of cages and skips shall be kept Safety 
well oiled and in good working order; they shall be and sheave 
tested at least once each two weeks, by tying up cage be regularly 
with hemp rope, lowering a few feet of hoisting cable £gg® d d and 
on top of cage, then cutting the hemp rope; provided, 
that any other system of testing, which is equally effec¬ 
tive may be used after securing the approval, in writ¬ 
ing, of the Industrial Accident Commission. 


78 


Precaution 
for lowering 
when shaft 
sinking. 


Men must be 
protected by 
bulkheads. 


Mine Safety Orders. 

( b ) Sheave wheels shall be daily inspected and prop¬ 
erly oiled. 

Order 1753. Hoisting While Sinking Shaft. 

(a) In no case shall a cage, skip, bucket, or other 
vehicle be lowered directly to the bottom of the shaft 
when men are working there, but such cage, skip, bucket, 
or other vehicle shall be stopped at least fifteen feet 
above the bottom of such shaft, until the signal to lower 
farther shall have been given to the hoisting engineer, 
by one of the men at the bottom of the shaft. 

Order 1754. Deepening Shaft—Protection. 

(a) During shaft-sinking operations in shafts steeper 
than thirty-five degrees from the horizontal, no other 
work in any other place in the shaft shall be executed, 
nor shall any material or tools be hoisted or lowered 
from or to any other place in the shaft while men 
are at work in the bottom of the shaft, unless the 
men so at work be protected from the danger of falling 
material by a securely constructed covering, sufficient 
closable openings being left for the passage of men and 
the bucket or other conveyance used in the sinking 
operations. 

Order 1755. Telephone System in Mines. 

An act providing for the establishment and maintenance 
of a telephone system in mines and prescribing a 
penalty for the violation thereof. 

(Approved June 13, 1913.) 

The people of the State of California do enact as 
follows: 

Section 1. In all mines operated and worked in this 
state, where a depth of more than five hundred feet 


Industrial Accident Commission. 


79 


/ 

underground has been reached, a telephone system must Telephones 
be established, equipped and maintained by the owners 
or lessees thereof with stations at each working level hundred 

l66i QC6D. 

below the depth aforesaid, communicating with a station 
thereof on the surface of any such mine. 

Sec. 2. The failure or refusal of any owner or lessee 
to install or maintain such telephone system shall be 
deemed guilty of misdemeanor and punished accordingly. 

Order 1756. Telephones. 

Telephones shall be installed in all mines operated 
through tunnels or adits having a length of one thou¬ 
sand feet or more. 

Order 1757. Signals. 

(a) Every shaft, if exceeding fifty feet in depth, shall 

be provided with an efficient means of interchanging dis- sttmaiiw 
tinct and definite signals between the top of the shaft in 
and the lowest level and the various intermediate levels shafts * 
from which hoisting is being done. 

( b ) Special care shall be taken to keep the signaling 
apparatus in good order, and all proper precautions 
shall be taken to prevent electric signal and telephone 
wires from coming into contact with other electric con¬ 
ductors, whether insulated or not. 

Order 1758. California Mine Bell Signals. 

(a) Every person, company, corporation, or individual, 
operating any mine within the State of California— 
gold, silver, copper, lead, coal, or any other metal or 
substance—where it is necessary to use signals by 
means of bell or otherwise, for shafts, inclines, drifts, 


80 


Mine Safety Orders. 


crosscuts, tunnels, and underground workings, shall 
adopt, use, and put in force the following system or 
code of mine bell signals: 

1 bell, to hoist. 

1 bell, to stop if in motion. 

1 bell, to release skip. 

2 bells, to lower. 

3 bells, man on; run slow. 

7 bells, accident. 

3-2-1 bells, ready to shoot in the shaft. 

After signal “Ready to shoot in shaft,” engineer 
must give his signal when he is ready to hoist. Miners 
must then give the signal of “Men to be hoisted,” then 
“spit fuse,” get into the bucket, and give the signal 
to hoist. 

Engineer’s signal, that he is ready to hoist, is to raise 
the bucket or cage two feet and lower it again. 

Levels shall be designated and inserted in notice 
hereinafter mentioned. 

( b ) For the purpose of enforcing and properly under¬ 
standing the above code of signals, the following orders 
are hereby established: 

(c) In giving signals make strokes on bell at regular 

intervals. The bar (—) must take the same time as 
for one stroke of the bell, and no more. If timber, 
tools, the foreman, bucket or cage are wanted to stop 
at any level in the mine, signal by number of strokes 
on the bell, number of level first before giving the 
signal for timber, tools, etc. Time between signals to 
be double bars (-). 


81 


Industrial Accident Commission. 

/ 

( d ) No person must get off or on the bucket or 
cage while the same is in motion. When men are to be 
hoisted give the signal for men. Men must then get 
on bucket or cage, then give the signal to hoist. Bell 
cord must be in reach of man on bucket or cage at 
stations. 

( c ) All timbers, tools, etc., not rigidly held, longer 
than the depth of the bucket, skip, cage or other con¬ 
veyance, to be hoisted, or lowered, must be securely 
lashed at the upper end to the cable. Employees must 
know they will ride up or down the shaft without catch¬ 
ing on rocks or such timbers and be thrown out. 

(/) The foreman will see that one printed sheet 
of these signals and orders for each level, and one for 
the engine room, are attached to a board not less than 
twelve inches wide by thirty-six inches long, and 
securely fasten the board up whe/e signals can be easily 
read at the places above stated. 

Order 1759. Special Signal Boards. 

(a) In addition to posting the full signal code there 
shall be placed at each station a sign board on which 
shall be displayed the designation of the station, and 
where station signals are used, the bell signal corre¬ 
sponding. 


Special 

signal 

boards 

required at 

shaft 

stations. 


6—6163 


82 


Mine Safety Orders. 


ELECTRICAL ORDERS. 

These orders shall apply to underground electrical 
equipment and conductors or similar equipment par¬ 
tially underground and partially on the surface. 

Electrical Utilization Safety Orders shall apply to all 
surface equipment. 

Order 1760. Definitions. 

(a) Potential —The terms “potential” and “voltage” 
are synonymous and mean electrical pressure. 

( b ) Difference of potential —The expression “differ¬ 
ence of potential” means the difference of electrical pres¬ 
sure existing between any two points of an electrical 
system or between any point of such a system and the 
earth as determined by a voltmeter. 

(c) Potential of a circuit .—The potential or voltage of 
a circuit, machine, or any piece of electrical apparatus is 
the potential normally existing between the conductors 
of such circuit or the terminals of such machine or 
apparatus. 

(d) Where the conditions of the supply of electricity 
are such that the difference of potential between any two 
points of the circuit can not exceed three hundred volts, 
the supply shall be deemed a low-voltage supply. 

( e ) Where the conditions of the supply of electricity 
are such that the difference of potential between any two 
points of the circuit may at any time exceed three hun¬ 
dred volts, but can not exceed six hundred fifty volts, 
the supply shall be deemed a medium-voltage supply. 


Industrial Accident Commission. 

/ 

(/) Where the conditions of the supply of electricity 
are such that the difference of potential between any two 
points of the circuit may at any time exceed six hun¬ 
dred fifty volts, the supply shall be deemed a high- 
voltage supply. 

(g) Grounding. —Grounding any part of an electrical 
system shall consist in so connecting such part to the 
earth that there shall be no material difference of 
potential between such part and the earth. 

( h ) Underground station. —The term “underground 
station” as used herein shall mean any place where elec¬ 
trical machinery is permanently installed in the mine. 

(i) Carrying capacity. —The term “carrying capacity” 
shall be taken to mean the carrying capacity of a given 
wire as prescribed for various insulated wires in the 
National Electric Code, published by the National 
Board of Fire Underwriters. 

Order 1761. Notice of Electrical Installation. 

(a) Whenever any permanent electrical installation 
of medium or high voltage, in excess of twenty-five 
kilowatts, is to be introduced into any mine or mine 
plant, notices thereof in writing, with plans and speci¬ 
fications, shall be sent to the Industrial Accident Com¬ 
mission as early as possible before such installation is 
begun. 

Order 1762. Care of Equipment and Practices. 

(a) No person working in or about a mine shall 
wilfully cause another person to receive an electric 
shock. 


84 


Mine Safety Orders. 


( b ) No person shall, without authority, handle elec¬ 
tric wires or conductors, or electrical apparatus of any 
kind, or enter an electrical machine room or under¬ 
ground station. 

Inexpe- ( c ) No person shall be allowed to work on or with 

persons shall e l ectr i ca Uy driven apparatus, unless he shall have been 
not work previously instructed in the performance of his duties 
electricity, by a competent person and shall have been duly author¬ 
ized by the mine superintendent or mine foreman. 

( d ) No repairing of any electrical apparatus shall be 
done when the current is on, except by an electrician in 
case of apparatus of less than one hundred and fifteen 
volts. 

( e ) Electric lights underground shall not be in¬ 
stalled save by a competent person to be designated or 
appointed by the mine foreman. 

Ekctrkians (/) Instructions for the resuscitation of persons 
structedin suffering from electric shock shall be posted at the 
resuscitation, entrance to the mine, in every generating station or 
substation, and in all underground electric stations. All 
employees working with electrical apparatus shall be 
required by the mine superintendent to familiarize 
themselves with these instructions, and shall be capable 
of applying them before entering upon such work. 

(g) No person shall wilfully damage or without 
proper authority shall alter or make connections to any 
electrical lines or conductors, machines, apparatus, or 
parts thereof, used in connection with the supply or use 
of electricity. 


Industrial Accident Commission. 


85 


Order 1763. Grounding. 

(a) The frames and bed plates of generators, trans- Frames of 
formers, compensators, rheostats, and motors, installed electrical” 
underground shall be effectively grounded. All metallic 
coverings, armoring of cables, other than trailing cables, grounded, 
and the neutral wire of three-wire systems shall also be 
so grounded. 


Voltage. 

( b ) No higher voltage than medium voltage shall be Use^ofhigh 
used underground, except for transmission or for appli- restricted, 
cation to transformers, motors, or other apparatus in 
which the whole of the high-voltage circuit is stationary. 

Ground Detectors. 

(c) All circuits leaving switchboard in underground Ground 
stations, and all circuits leaving switchboard upon the ?equired S on 
surface and leading underground, shall, if circuits are certata 
completely insulated from the earth, be equipped with 

earth or fault detectors properly installed. Such 
detectors shall be inspected daily by a competent person, 
who shall report promptly to the superintendent of the 
mine the occurrence of any ground. 

Switchboards. 

(d) Main and distribution switch and fuseboards Speciflca- 
shall be made of noncombustible, nonabsorbent, insu- switchand 
lating material, which shall be free from metallic fuse boards - 
veins. The board shall be mounted upon supporting 
frameworks of iron or steel and fixed in a dry place. 

If insulated conductors are used in the wiring of the 
board, the insulation of such conductors shall be flame¬ 
proof. 


86 


Mine Safety Orders. 


Fire 

protection 
required 
in electrical 
stations. 


Lights in 

underground 

stations. 


Map of 

underground 

electrical 

equipment 

required. 


Danger Signals. 

(e) All high-voltage machines and apparatus shall be 
marked by the use of the word “danger.” 

Fire Buckets. 

(/) Buckets filled with clean, dry sand shall be kept 
in all underground electrical stations ready for immedi¬ 
ate use in extinguishing fires. The minimum quantity 
of sand thus stored in any one station shall be two 
cubic feet; provided, that a Pyrene extinguisher, or 
equal, may be kept instead of the sand. 

Emergency Lights. 

( g ) Lamps or other proper lights shall be kept ready 
fo- use in all underground stations where a failure of 
electric light is likely to cause danger. 

Plan of Electric System. 

(h) The operator of every mine where electrical 
equipment is installed underground shall make or cause 
to be made by a competent person, a clear and accurate 
plan, or sketch with distances marked, showing the 
position of all stationary electrical apparatus in connec¬ 
tion with the mine, in excess of twenty-five kilowatts 
or medium voltage, including fixed cables, conductors, 
lights, switches and trolley lines. The capacity in horse¬ 
power of each motor and in kilowatts of each generator 
or transformer, and the nature of its duty, shall be 
shown on such plan or sketch. This plan or sketch 
shall be kept at the mine and shall be corrected and be 
brought up to date at intervals of not exceeding six 
months, and shall at all times be subject to examination 
by the chief mining engineer or a mining engineer. 


Industrial Accident Commission. 


87 


Report of Defective System. 

(0 A report shall be promptly made to the mine Defective 

electrical 

superintendent or mine foreman of every breakdown of apparatus 
any part of the electrical equipment in the mine, or of "ported, 
damage or injury thereto, or of any overheating, or of 
the appearance of sparks or arcs outside of the inclos¬ 
ing casings, or when any part of the equipment, not a 
part of the electrical circuit becomes alive. It shall be 
the duty of the person first observing such breakdown, 
injury, damage, sparking, arcing, or the fact that some 
part of the equipment, not so supposed to be, is alive, 
to make such report or to communicate such fact to the 
person in charge of the equipment in question, who 
shall thereupon make such report as prescribed. 


Order 1764. Underground Stations and Transformer 
Rooms. 


(a) Switchboards .—All switches, circuit breakers, J-bi^insuiat- 
rheostats, fuses, and instruments used in connection ing material 
with underground motor generators, rotary converters, forswitch* 
transformers, and motors, shall be mounted on standard bases * 
bases of noncombustible and insulating material, but in 
no case shall primary instruments be used. This pro¬ 
vision shall not apply to compensators for induction 
motors. The above mentioned switches, circuit break¬ 
ers, rheostats, fuses, and instruments may be mounted 
on a common base, provided such base is of noncom¬ 
bustible, insulating material. 


( b ) Passageways .—A passageway not less than three Passageways 
. . ..... ... . . required m 

ieet in width shall be maintained in front of all switch- front of and 

boards, and behind all switchboards more than thirty g^tchboards. 

inches wide, installed underground, after these orders go 


88 


Mine Safety Orders. 


Spaed back 
of high-volt¬ 
age switch¬ 
boards shall 
be kept 
locked. 


into effect; provided, however, that in the case of high- 
voltage boards such passageways shall not be less than 
four feet in width. In cases of old installations which 
do not meet the requirements of this paragraph, no one 
shall be permitted back of the switchboards while the 
current is on. 

( c ) Space hack of switchboards. —The space at the 
back of switchboards, over thirty inches wide, shall be 
accessible from each end, and shall be kept locked up 
in case of high-voltage boards, but no lock shall be used 
that will not permit the door being opened from the 
inside without the use of a key. In no case shall this 
space be used as a change room, wardrobe or for the 
storage of material. Noncombustible flooring only shall 
be used at the front and back of high-voltage boards, 
and insulating mats or their equivalent shall be provided 
in front and back of all boards, whatever the voltage. 

(d) Conductors crossing passageway. —No electric- 
conductor shall cross a passageway at the back of a 
switchboard except below the floor, or at a height of 
not less than seven feet above the level of the floor. 

( e ) Live metal work on switchboards. —No live 
metal work shall be placed on the front of high-voltage 
switchboards within seven feet of the floor. 

( f ) Protection of terminals. —All exposed terminals 
on underground machines shall be protected with prop¬ 
erly designed insulating covers of suitable material, or 
with metal covers connected to earth. 

(g) Transformer rooms. —Transformer rooms shall 
be properly lighted, shall be of fireproof construction, 
and if of conductive material shall be effectively 
grounded. 


Industrial Accident Commission. 89 

(h) Circuits entering or leaving all transformers .— Switches 
Circuits leaving a transformer shall be protected by a maticcir- 
switch and an automatic circuit breaker to interrupt cuit breakers 
current, but fuses may be substituted for the circuit near trans¬ 
breakers in the case of lighting circuits, and in the case formers ' 
of power circuits transmitting twenty-five kilowatts or 
less. Primary fuses and disconnecting switches shall 
be placed in the primary circuit ahead of the trans¬ 
formers, but in no case shall these disconnecting 
switches be opened or closed under load. 

Order 1765. TRANSMISSION LINES AND 
CABLES. 

High-voltage Wires. 

(a) All high-voltage wires installed underground Armor re- 

after these orders are adopted, shall be in the form of high-voltage 

insulated lead-covered cables, which shall be armored underground 

. wires. 

or effectively protected against abrasion, but the armor 
shall be electrically continuous throughout, and shall be 
effectively grounded. The installation of efficiently 
insulated wires in metal conduit to transmit power 
underground, shall be considered to meet this require¬ 
ment. 


Support of Cables and Wires. 

( b ) All underground cables and wires, unless pro- ^support 
vided with grounded metallic covering, shall be sup- of con- 
ported by efficient insulators. The conductors connect- ductors - 
ing lamps to the power supply shall in all cases be 
insulated. 

(c) Cables and wires unprovided with metallic cover¬ 
ings shall not be fixed to walls or timbers by means of 
uninsulated fastenings. 


90 


Efficient 
insulators 
and light¬ 
ning arresters 
required. 


Insulation 
of buried 
cables. 


Switches and 

circuit 

breakers. 


Mine Safety Orders. 

Overhead Lines Above Ground. 

( d ) Overhead transmission lines between the gener¬ 
ating station or substation and the mine entrance, .shall 
be supported upon insulators, which shall be adequate 
in quality, size, and design for the voltage transmitted. 
Where such line is more than five hundred feet in 
length, lightning arresters shall be installed in connec¬ 
tion therewith at the entrance to the mine. Such line 
except in the case of trolley wires, shall be maintained 
not less than fourteen feet above the ground at the 
lowest point, except at the point of entrance to the 
mine. 


Buried Cables. 

( e ) Buried cables shall be continuously insulated, and 
protected by a metallic sheath, preferably lead; and 
where they are so located that there is a possibility of 
danger to the sheath by puncturing, such cables shall be 
further protected by armor. 

Protection of Circuits Leading Underground. 

(/•) Every completely insulated feeder circuit in 
excess of twenty-four kilowatt capacity, leading under¬ 
ground, where the supply does not exceed the limits of 
a medium-voltage supply, shall be provided above 
ground with a switch and an automatic overload circuit 
breaker. In the case of ground-return direct current 
circuits, a switch and current breaker shall be installed 
in the ungrounded side of the circuit, but may be 
omitted from the return side. Fuses may be sub¬ 
stituted for circuit breakers in circuits transmitting 
twenty-five kilowatts or less. 


91 


Industrial Accident Commission. 

(g ) Every high-voltage alternating-current feeder 
circuit leading underground shall be provided above 
ground with an oil break switch on each phase, and 
every such switch shall be equipped with an automatic 
overload trip. 

Branch Circuits. 

( h ) Every branch circuit shall be provided with a Switches on 
switch of ample carrying capacity, on each phase, within circuits, 
fifty feet of the point where it leaves the main circuit. 

Lighting Circuits. 

(*) Wires for all lighting circuits shall be covered Insulation 
with an insulation adequate for the voltage of the cir- ^p Por t of 
cuit, and, unless encased in pipes or other metallic 
covering, shall be strung on porcelain or glass insula¬ 
tors. Separate uncased wires shall be kept at least 
three inches apart, except where they enter the fittings. 

Metallic casings, if used, shall be efficiently grounded. 

Underground Trolley. 

(/) Trolley wires shall be installed as far to one 
side of underground workings as is practicable, and 
shall be securely supported upon hangers efficiently in¬ 
sulated, and placed at such intervals that the sag 
between points of support shall not exceed three inches. 

Protection of Trolley Wires. 

( k ) At all places where men are required to work Trolley 

. . i . .I .it wires boxed 

or pass regularly under trolley or other bare power } n an( j 

wires which are placed less than six and one-half feet 
above top of rail, a suitable protection shall be pro¬ 
vided, which may consist of channeling the roof or of 


92 Mine Safety Orders. 

placing boards along the wire, which shall extend three 
inches below it, the spacing between boards not to exceed 
four and one-half inches, or in the use of any other de¬ 
vice that will afford ample protection. In new installa¬ 
tions the trolley wires shall be protected as provided for 
above unless the wire is at least seven feet above top 
of rail. At all points where timbers or tools have to be 
unloaded or transferred up a raise, the trolley wires shall 
be boxed or otherwise protected as provided for in this 
paragraph. All places where it is required that the 
trolley wires shall be boxed, shall be well lighted with 
electric lamps. 

Protection (/) All wires, except telephone, shot-firing and 
wires signal wires, shall be on the same side of the working 
as the trolley wire, and shall be boxed or otherwise 
protected when timbers or tools have to be transferred 
up a raise. 

Power Wires and Cables in Shafts. 

(m) In all shafts, the angle of inclination of which 
is above forty-five degrees from the horizontal, and in 
all hoisting shafts or manway compartments, all power 
wires and cables shall be highly insulated and substan¬ 
tially fixed in position. All shaft cables shall be sup¬ 
ported on insulators that can not cause abrasion of the 
covering or insulation, so spaced that no part of the 
cable shall be under a tension greater than one-fourth 
of its ultimate strength. The cable shall be held in 
position at points between the insulators by grips or 
cleats that can not cause abrasion of the covering or 
insulation. Where the cables are not completely boxed 
in and protected from falling material, space shall be 
left between them and the side of the shaft so that they 


Special 
supports 
are required 
for power 
cables in 
shafts. 


Industrial Accident Commission. 


93 


may yield and lessen a blow from falling material. 
This order shall not be construed to prevent the in¬ 
stallation of efficiently insulated wires in metal conduit, 
to transmit power underground. 

Cables in Main Roads. 

(w) Where the cables or feed wires in main roads 
can not be kept at least twelve inches from any part of 
the mine car or locomotive, they shall be specially pro¬ 
tected by proper guards. 

Protection of Cables During Blasting. 

( o ) Cables shall be temporarily protected against 
damage at any point where workings are being repaired 
or where blasting is being carried on. 

Cables Entering Fittings. 

(/>) The exposed ends of cables where they enter 
fittings of any description shall be so protected and 
finished off, that moisture can not enter the cable, or 
the insulating material leak out, if of an oily or viscous 
nature. 

( q ) Where unarmored cables or wires pass through 
metal frames or into boxes or motor casings, the holes 
shall be substantially lined with insulating bushings. 

Joints in Conductors. 

( r ) All joints in conductors shall be mechanically 
and electrically efficient, and shall be soldered wherever 
necessary. All joints in insulated wire shall, after the 
joint is complete, be re-insulated to the same extent as 
the remainder of the wire. 


Protection 
of cables. 


Cable con¬ 
nections. 


Connections 
must be 
insulated. 


94 


Cable 

junction 

boxes. 


Efficiency 
of circuit 
breakers. 


Switches. 


Fuses. 


Circuit 

breaking 

devices. 


Mine Safety Orders. 

Joints in Cables. 

(s) Where cables are joined, suitable junction boxes 
shall be used, or the joints shall be soldered, and the 
insulation, armoring, or lead covering replaced in as 
good condition as it was originally. 

Order 1766. Fuses, Circuit Breakers, and Switches. 

(a) Fuses and automatic circuit breakers shall be 
constructed so as effectually to interrupt the current 
when a short circuit occurs or when the current through 
them exceeds a predetermined value. No open type or 
link fuses shall be used. 

( b ) All points at which a circuit has to be made or 
broken, shall be provided with proper switches, which 
shall be so installed that they can not be closed by 
gravity. 

(c) Fuses shall be stamped or marked, or shall have 
a label attached, indicating the maximum current that 
they are intended to carry. Fuses shall be adjusted or 
replaced only by an authorized and competent person. 

(d) The capacity of fuses used to protect feeders 
shall not exceed the current capacity of the feeder by 
more than twenty-five per cent. 

(e) All switches, circuit breakers, and fuses shall 
have noncombustible bases. 

Order 1767. Stationary Motors. 

(a) Every stationary motor and every portable motor 
underground, together with its starting device, shall be 
protected by a fuse on each phase or (in the case of 


Industrial Accident Commission. 


95 


motors of more than forty horsepower) by a circuit 
breaking device on at least one phase of direct current 
motors and on each phase of alternating current 
motors, and by switches arranged to cut off entirely the 
power from the motor. The above devices shall be 
installed in a convenient position near the motor and in 
sight of it. 


Order 1768. Electric Lighting. 

(a) Lamp sockets. —The exterior of the sockets of all Non-metallic 
fixed incandescent lamps shall be entirely nonmetallic. sockets. 

( b ) Flexible lamp cord. —The use of flexible lamp Special 

. ^ lamp cord 

cord for lighting connections is prohibited, except for required 

portable incandescent lights to be used in connection 
with the inspection and repair of machinery and equip¬ 
ment, and in that case the cord shall be specially in¬ 
sulated and armored. Such portable lights shall be 
protected by a wire cage large enough to inclose both 
lamp and socket and shall be provided with a handle to 
which the light and socket shall be firmly attached and 
through which the leading-in wires shall be carried. 

(c) Incandescent lamps. —Incandescent lamps shall 

be so placed that they can not come into contact with lamps, 
combustible material; and shall be so placed that an 
adequate circulation of air may take place on all sides 
of them. 


96 


Mine Safety Orders. 


Order 1769. 

General Safety Orders issued by the Industrial Acci¬ 
dent Commission of the State of California shall apply. 
Adopted November 1, 1915. Effective January 1, 1916. 
(Copy mailed on application to Industrial Accident 
Commission.) 

Order 1770* 

(a) Air Pressure Tank Safety Orders issued by the 
Industrial Accident Commission of the State of Cali¬ 
fornia shall apply. Adopted December 4, 1916. Effective 
January 1, 1917. (Copy mailed on application to the 
Industrial Accident Commission.) 

Order 1771. Underground Restraining Dam. 

(a) No restraining dam shall be installed in any 
mine where the rupture of such dam would imperil the 
safety of men in said mine or other mine until the 
Industrial Accident Commission has given its approval 
for the construction of said dam. 

Order 1772. Transportation. 

(a) .Where mechanical haulage is used, all frogs shall 
be properly blocked. 

( b ) Employees shall not be allowed to ride on cars, 
where mechanical haulage is used, unless specifically 
authorized to do so by the superintendent or his 
assistants. 

# (c) Lights shall be kept on the front of all moving 

trains. 

♦Commission recommends that a fusible plug be inserted in the 
air line between the compressor and air receiving tank. 



Indy,strial Accident Commission. 


97 


X 

Order 1773. ENGINE SAFETY ORDERS. 

Order 100. 

(a) All stationary steam engines, gas engines, air 
compressors, electric generators and pumps must have 
all gears, belts, pulleys, clutches, shafts, keys and key- 
seats, collars, set screws and sprockets guarded accord¬ 
ing to the orders as set forth in General Safety Orders 
issued by this Commission. (Portable engines and 
pumps, such as logging engines, portable hoisting 
engines and engines and pumps used in construction 
work are not classed as stationary engines.) 

Order 101.* 

(a) Each engine must be equipped with an effective 
governor which will at all times automatically control 
the speed of the engine under varied loads, except 
where the load itself acts as an effective governor. All 
belt, rope or chain-driven governors must be equipped 
with a safety device which will stop the engine in case 
the belt, rope or chain should break. 

( b ) Projecting rotating parts of all engine governors 
shall be provided with substantial guards. 

Order 102* 

(a) Valve gears must be so arranged, or other pro¬ 
visions made, that in the event of the load being 
removed, the engine will stop if the governor fails to 
act. (A broken governor belt stop will be considered 
sufficient for slide or four-valve engines.) 

*It is recommended that each engine shall be equipped with an 
automatic stop, independent and a complete unit in itself. 


7—6163 



98 


Mine Safety Orders. 


Order 103. 

(a) All parts of engine room not accessible from the 
floor and requiring attention must be provided with ade¬ 
quate runways, rough tread platforms, or rough tread 
stairways. 

( b ) Where stairways are not practicable, fixed lad¬ 
ders must be installed, the rounds of which shall be not 
less than six (6) inches in clear from wall or column. 
(The use of m*etal ladders is strongly advocated.) 

(c) The protection of platforms and runways shall 
be in accordance with Order 13 of the General Safety 
Orders. 

Order 104. 

(a) No repairs must be made on any vertical or 
horizontal engine, compressor or pump until the engine 
has been securely blocked, or other provisions made to 
prevent revolving or reciprocating parts from turning 
over accidentally. 

Order 105. 

(a) Wherever floors, stairways or platforms in engine 
rooms become slippery, they shall be equipped with 
rough surface plates or treads. 

Order 106. 

(a) In engine rooms all floor openings must be pro¬ 
tected by a substantial covering or be guarded in accord¬ 
ance with Order 17 of the General Safety Orders. 
(The use of rough tread metal plates is advocated for 
floor opening covers.) 


Industrial Accident Commission. 


99 


x 

Order 107. 

Flywheels on stationary steam engines, gas engines, 
air compressors, electric generators and pumps must be 
guarded as follows: 

(a) If guard is at least fifteen (15) inches and not 
more than eighteen (18) inches in the clear from each 
side and face of the wheel, a fence may be used at least 
three and one-half (3^4) feet high, consisting of two 
rails, the bottom rail of which must be at a point 
eighteen (18) inches from the floor, and no rails shall 
be spaced a greater distance than twenty-four (24) 
inches between centers. 

( b ) If guard is less than fifteen (15) inches in the 
clear from each side, and each face of the wheel, a 
substantially supported wire mesh or close slat guard 
with openings not greater than two (2) inches in any 
direction, must be provided at least to the top of the 
wheel, if the wheel does not extend over five (5) feet 
in height, and in no case shall this guard be less than 
three and one-half (3*4) feet high. If the top of the 
wheel is more than five (5) feet in height, the guard 
must be at least five (5) feet high. 

(c) All flywheel pits must be surrounded with toe- 
boards not less than six (6) inches high. 

(d) In case the above method of protection is not 
desired, flywheels must be housed completely with sub¬ 
stantially supported wire mesh, close slats or solid 
material. 

(?) Where it is necessary to move flywheels *for 
starting, guards may be removed temporarily, but must 
be replaced immediately after such operation is complete. 


100 


Mine Safety Orders. 


( f ) All rope-drive wheels and pulleys from main 
engine to jack-shaft must be covered with a substantial 
housing to prevent lashing of broken rope. 

( g ) Every engine transmitting power by means of a 
rope drive must be equipped with a telltale which will 
give ample warning of the stranding of the ropes. 

Order 108. 

(a) All cranks and connecting rods of center crank 
engines and of high speed side-crank engines, shall be 
equipped with a complete and substantial metal housing 
which may be provided with doors where necessary. 

( b ) All slow speed side-crank engines shall be pro¬ 
vided with a guard at least fifteen (15) inches in the 
clear from the crank pin, and at least three and one-half 
(3^4) feet high. 

Order 109. 

(a) Two exits shall be provided for each engine 
room, said exits to readily open from the inside without 
the use of a key. 

( b ) In engine rooms below ground level, at least one 
exit must be isolated from the engine room by a fire¬ 
proof enclosure, the entrance of which must be provided 
with a door at floor level. 

Note. —The intent is to protect operators against scalding or 
suffocating vapors or gases. 

( c ) All engine rooms shall be properly ventilated to 
prevent the accumulation of noxious vapors, odors and 
fumes. 


Industrial Accident Commission. 


Order 110. 

(a) All trenches, tunnels and pits in engine rooms 
and leading therefrom shall have proper drainage and 
ventilation and be kept in a sanitary condition. 

( b ) All sumps and sewage tanks in engine rooms shall 
be tightly covered and ventilated to the outside atmos¬ 
phere, using a vent not less than four (4) inches in 
diameter, and so located as not to endanger the safety 
of anyone in the vicinity. 

Order 111. 

(a) All traps, drains and trap discharges from engines 
shall be piped to a line, blow-off tank or other safe place 
of discharge. 

( b ) The discharge of all engine exhaust pipes must 
be located so as not to endanger the safety of anyone in 
the vicinity. 

Recommendations. 

It is recommended that every ammonia refrigerating 
plant maintain in good order a helmet or other similar 
device approved by this Commission for use in case it 
is necessary to enter the room in the presence of exces¬ 
sive ammonia fumes, and that this device be kept in 
close proximity to the entrance, and on the outside* of 
the compressor room. 

Order 1774. Boiler Safety Orders. 

Boiler Safety Orders issued by the Industrial Acci¬ 
dent Commission of the State of California shall apply. 


102 


Mine Safety Orders. 


Adopted July 31, 1916. Effective January 1, 1917. 
(Copy mailed on application to the Industrial Accident 
Commission.) 

Order 1775. Hours of Labor in Mine, Underground 
Workings and Smelters. 

(Statutes 1913, Chapter 186.) 

Section 1 . That the period of employment for all 
persons who are employed or engaged in work in under¬ 
ground mines in search of minerals, whether base or 
precious, or who are engaged in such underground mines 
for other purposes, or who are employed or engaged in 
any other underground workings whether for the pur¬ 
pose of tunneling, making excavations or to accomplish 
any other purpose or design, or who are employed in 
smelters and other institutions for the reduction or 
refining of ores or metals, shall not exceed eight hours 
within any twenty-four hours, and the hours of employ¬ 
ment in such employment or work day shall be consecu¬ 
tive, excluding, however, any intermission of time for 
lunch or meals; provided, that, in case of emergency 
where life or property is in imminent danger, the period 
may be a longer time during the continuance of the 
exigency or emergency. 

Sec. 2. Any person who shall violate any provision 
of this act, and any person who as foreman, manager, 
director or officer of a corporation, or as the employer 
or superior officer of any person, shall command, per¬ 
suade or allow any person to violate any provision of 
this act, shall be guilty of a misdemeanor and upon con¬ 
viction shall be punished by a fine of not less than fifty 
dollars ($50.00) nor more than three hundred dollars 
($300.00), 6r by imprisonment of not more than three 
months. And the court shall have discretion to impose 
both fine and imprisonment as herein provided. 

Sec. 3. All acts and parts of acts inconsistent with 
this act are hereby repealed. 


Industrial Accident Commission. 


103 


Order 1776. Woodworking Safety Orders. 

Woodworking Safety Orders issued by the Industrial 
Accident Commission of the State of California shall 
apply. Adopted June 5, 1916, effective August 1, 1916. 
(Copy mailed on application to the Industrial Accident 
Commission.) 

Appendix. 

Workmen’s Compensation, Insurance and Safety Act. 
(Copy mailed on application to the Industrial Accident 
Commission.) 




























































































INDEX. 

A 

Sulxli- 



Page 

Order 

vision 

Abandoned drill holes, deepening forbidden_ 

29 

1713 

4 

Abandoned mine, maps must be filed_ 

17 

1705 

b 

Abandoned mines, upkeep of escapeways_ 

40 

1723 

b 

Abandoned mine shafts must be protected_ 

30, 31 

1714 

1-2 

Accidents and injuries must be reported_ 

30 

1713 

15 

Accidents, reports by employees_ __ 

20 

1711 

a 

Accumulations of water, protection against_ 

40, 47 

1734 

a-b 

Act: Drinking water___ 

30 

1719 

1 

Explosives -— - 

54-00 

1742 

1-10 

Dabor camp sanitation -- . - _ 

32-35 

1717 

1-8 

Fencing abandoned shafts ___ _ 

30, 31 

1714 

1-4 

Hours of labor in mine, underground workings 

and smelter- 

102 

1775 

1-3 

Mine exits _ 

37, 38 

1721 

1-2 

Reporting of fatal injuries by wire.._ 

20 

1707 

a 

Telephone system in mines..,___ 

78,79 

1755 

1-2 

Workmen’s Compensation, Insurance and Safety, 

Appendix _ 

103 

_ 


Adits, telephones required- 

79 

1750 


Aerial tramways, oilers and inspectors only allowed 

to ride___ 

27 

1712 

i 

Air in mines to be kept pure- 

42, 43 

1726 

a, b 

Air pressure tank safety orders- 

90 

1770 

a 

Apparatus, oxygen mine rescue, men must be trained 

10 

1704 

g 

Apparatus, oxygen mine rescue, monthly inspections 

15 

1704 

e 

Apparatus, oxygen mine rescue, required _ 

13 

1704 

a 

Appendix, Workmen’s Compensation, Insurance and 

Safety Act- 

103 

_ 

_ 

Application of rules, defining mines covered- 

5 

1700 

a 

Appointment of mine foreman... 

24 

1700 

a 

B 

Bar, loading at chutes- - 

27 

1712 

f 

Bell cord in reach required._ --- 

81 

1758 

d 

Belting guarded, required- 

31 

1715 

a 

Blankets required _ 

11 

1703 

a 

Blasting, duties of foreman- - 

65 

1745 

a 

Blasting, duties of shot firers-- 

65, 6G 

1745 

a, e 

Blasting, general- - 

65, 68 

1745 

a, k 

Blasting in shaft- 

80 

1758 

a 

Blasting more than fifteen holes forbidden-- 

07 

1745 

g 

































106 


Index. 


Blasting, protection, wires_ _ _ 

Page 

93 

Order 

1765 

Subdi¬ 

vision 

O 

Blasting warnings required _ —-- 

3K) 

1713 

13 

Boiler safety orders_ 

101,102 

1774 

_ 

Bonnets on cages.. _ ... _ _ 

76 

1751 

a, b 

Bore holes approaching workings full of water_ 

47 

1734 

b 

Bore holes, extraction, explosives_ 

66 

1745 

c 

Boss or delegated employee required 1 when men are 
in mine _ __ 

27 

1712 

j 

Bosses, duties, blasting__ 

60 , 66 

1745 

a, e 

Boxes: Powder, instrument for opening.. _. ... _ 

62 

1743 

g 

Powder, opening in magazines prohibited_... 

62 

1743 

g 

Storage, of explosives in mine_ . 

61 

1743 

b 

Bucket, crossheads required__ 

48 

1737 

a 

Number of men on_ 

68 

1746 

b 

Speed _ _ 

69 

1746 

d 

Used, hatches required_ —.... ._ 

46 

1732 

b 

Buildings covering escapeways _ 

41 

1724 

a 

Bulkheads required, sinking.. _ _ 

78 

1754 

a 

Bumper required on dump tracks_ 

32 

1716 

a 

Bunkhouses, sanitation act_ 

32 

1717 

1 

C 

Cables. See hoisting ropes. 

Cables: Electric, buried--— 

90 

1765 

e 

Electric, in main roads--- 

93 

1765 

n 

Electric, in shafts___—-- 

92, 93 

1765 

m 

Electric, protection_ 

93 

1765 

n, q 

Electric, support of- 

89 

1765 

b, c 

Cager shall be employed-- 

69 

1746 

c 

Cages: Construction, vertical shafts... - 

76, 77 

1751 

b 

Hoisting men, general- 

76, 77 

1751 

a, e 

Tender must close gates- 

77 

1751 

d 

Testing safety catches-- — 

76 

1752 

a 

California mine bell signals---- 

79-81 

1758 

a-f 

Camp sanitation act--- 

32-31 

1717 

1-8 

Candles and lighting... . ... . 

50, 51 

1740 

a-d 

Candle, extinguished end of shift-- 

50 

1740 

a 

Capping fuse- --... .... . - - 

64 

1744 

d 

Caps. See Detonators and Explosives. 

Act -- _ . .. .. - ... _ _. _ 

55, 56 

1742 

3 

Instantaneous electric in same round with delay 
action prohibited_ __ _ 

67 

1745 

h 

Storage and transportation_ 

62 

1743 

e, f 

Strength ---- 

65 

1745 

a 







































Index. 


107 


Subtil- 



Page 

Order 

vision 

Carbide, underground storage_ ... . _ 

51 

1740 

d 

Care of equipment and practices, electrical.., _ 

83, 84 

1761 

a, e 

Care of the injured . _ _ . ... 

11, 12 

1703 

a 

Change houses _ _ _ 

35 

1718 


Chief mining engineer, definition_ __ 

6 

1700 

h 

Chutes, dust allaying_ _ 

50 

1739 

b 

Circuit breakers, electric.. ... .. _. _. 

94 

1766 

a, e 

Circuit breakers, stationary motors_ ___ 

94 

1766 

a 

Cleaning manways ... __ .. - _ 

44 

1729 

a 

Closets required_ _ .. _ 

36 

1720 

a 

Code, mine bell signals_ _ __ ... 

80 

1758 

a, c 

Combustible rubbish underground _ . 

53 

1741 

f 

Combustible substances, storage- - 

64 

1743 

o 

Conditions must be reported when dangerous_ 

27 

1712 

d 

Conductor, duties, cage or skip_ _ 

77 

1751 

d, e 

Construction: Ladders _ _ ___ 

48 

1738 

a, b 

Large magazines, act ... . . . . . 

5> 

1742 

3 a 

Man cages or skips__ _ .. 

76, 77 

1751 

b 

Small magazines, act._ _ .... ... 

56 

1742 

3b 

Transformer room__._ 

88 

1764 

S 

Underground dam____ 

90 

1771 

a 

Contractors, application of orders.. _. _ 

8 

1700 

0 

Conveyance, hoisting timber, tools, etc_ 

81 

1758 

e 

Cooperative mine rescue station; telephone com¬ 
munication . — . . ... - 

15 

1704 

c 

Foreman required _. _ __ _ _ 

14 

1704 

b 

Coroner’s evidence on fatal accidents.. - - 

21 

1707 

53 

Covering mine shafts, act_ __ 

30, 31 

1714 

1,2 

Crimpers, use required- 

64 

1744 

c 

Cross heads- - 

47, 48 

1737 

a 

Crossing shaft hoisting compartment forbidden._. 

46 

1732 

c 

D 

Dam, underground, approval for construction re- 

quired __ 

96 

1771 

a 

Danger; mine shafts to be covered, act- 

30, 31 

1714 

1,2 

Signals, mine foreman’s duties ___ 

26 

1712 

b 

Dangerous conditions to be immediately re¬ 
ported by operator or superintendent. 

9, 10 

1701 

b 

Dangerous gas must be reported by superintendent- 

42, 43 

1726 

c 

Dangerous machine, use prohibited by notice _ 

19 

1700 

e 

Dangerous machinery required guarded_ 

31, 32 

1715 

a 

Dangerous mines, engineer’s procedure_ 

17, IS 

1706 

a, b 





































108 


l nd ex. 


Subdi 



Page 

Order 

vision 

Dangerous places, mine foreman’s duties- 

26 

1712 

b 

Deepening shaft, protection- — 

78 

1754 

a 

Defective fuse, use forbidden-- - 

64 

1744 

f 

Definitions: Application- . - 

5 

1700 

a 

Chief mining engineer- 

6 

1700 

h 

Electrical orders. See Electricity, definitions. 




Employees - - 

8 

1700 

o 

Excavations and workings___ 

6 

1700 

j 

Explosive -- 

7 

1700 

1 

Mine _ . _ 

5 

1700 

c 

Mineral - - - 

5 

1700 

d 

Mine foreman _*_ 

6 

1700 

g 

Mining engineer „ __ 

6 

1700 

i 

Number of men_ 

6, 7 

1700 

k 

Operator -- 

6 

1700 

e 

Person _ _ 

7,8 

1/00 

m 

Singular and plural numbers__ 

5 

1700 

b 

Superintendent ___ 

6 

1700 

f 

Underground _ ___ 

6 

1700 

n 

Designation for service of notices--- _ .. 

10 

1702 

a 

Detonators. See Caps and Explosives. 




Devices, mine bell signals required_ 

79,81 

1758 

a, f 

Devices, signal, required in shafts___ 

79 

1757 

a, b 

Signal required, telephone act_ 

79, 80 

1755 

1, 2 

Distillate, storage_ _—.... 

51 

1741 

a 

Doors, fireproof required_ __ 

41, 42 

1725 

a, b 

Drifts; approaching accumulation water, protection 

47 

1734 

b 

Protected from falling material_ 

45 

1731 

b 

Drilling, dust required allayed_ 

49 

1739 

a 

Drilling near missed hole_ _ _ 

66 

1745 

c 

Drinking water; good quality, required_ 

36 

1719 

1 

State act __,_ 

36 

1719 

1 

Dry or water closets; construction_ 

36, 37 

1720 

a 

Disinfectants __ 

36, 37 

1720 

a 

Required _ _ 

36, 37 

1720 

a 

Dump tracks for waste must be kept in good con- 




dition; bumper and proper runway required— 

32 

1716 

a 

Dust; ore houses, allaying --- -- 

50 

1739 

d 

Rock, required, allayed'___ 

49, 50 

1739 

a-d 

Duties foreman: Blasting__ _ 

65 

1745 

a 

Electric lights underground, installation by com- 




petent person _ _ 

84 

1761 

e 

Electrically driven apparatus, person authorized 

84 

1761 

c 

Fencing off of dangerous places_ 

26 

1712 

b 

Hoisting, posting signals _ 

81 

1758 

e 











































Index. 


Inspection of all working places.... 

Mine exits ___ 

Record' of monthly fire drills_ 

Reporting of unsafe conditions_ 

Safety regulations _ 

Supervision over men___ 

Timber _ 

Duties, hoisting engineer____ 

Duties operator: Care of the injured_ 

Change house__ 

Designation for service of notices__ 

Factor of safety of hoisting rope_ 

Ladders and ladderways_ 

Notifying chief mining engineer upon resuming 

or starting new operations_ 

Oxygen mine rescue apparatus required_ 

Reasonable precautions to protect employees.„ 

Sanitation, dry closets, drinking water_ 

Supplying crimpers ___ 

Supplying timber __ 

Warning signal for hoisting engineer.-- 

Yearly reports to chief mining engineer_ 

Duties of operator or superintendent, report dan¬ 
gerous conditions --- 

Duties, shift boss, missed holes- 

Duties, shot firers, blasting _ 

Duties, skip or cage tender- 

Duties, skip tender - 

Duties, superintendent: Appointment of competent 

hoisting engineer- 

Appointment of competent man in charge of 

explosives magazine- 

Appointment of foreman- 

Electrically driven apparatus, person authorized 
Electricians, instruction in methods of resuscita¬ 
tion _ 

Examination of hoisting ropes every three 

months --- 

First aid -- 

Fuse _ 

Hoisting, general---- 

Hoisting, to designate number men on skip bail 

Hoisting, to post hoisting orders- 

Hoisting engineer, physical examination- 

Hoisting ropes ....—.. 


Page 

Order 

109 

Subdi¬ 

vision 

25 

1710 

f 

27,28 

1712 

k 

28 

1712 

k 

24 

1710 

a 

24 

1710 

a 

25 

1710 

a 

44 

1730 

c 

70-73 

1748 

1-15 

11, 12 

1703 

a 

35 

1718 

_ _ 

10 

1702 

a 

74 

1750 

a, b 

48, 40 

1738 

a-h 

10 

1701 

c 

13 

1704 

a 

26 

1712 

a 

36, 37 

1720 

a, b 

64 

1744 

e 

44 

1730 

b 

74 

1749 

c 

8, 10 

1701 

a, c 

9, 10 

1701 

b 

66 

1745 

c 

65, 66 

1745 

a, e 

77 

1751 

d 

69 

1746 

e 

70 

1747 

a 

22 

1708 

b 

24 

1709 

a 

84 

1761 

c 

84 

1761 

f 

75, 76 

1750 

g 

11, 12 

1703 

a, b 

64 

1744 

b 

68-71 

1746 

a-f 

68, 69 

1746 

b 

73 

1748 

13 

70, 71 

1747 

a 

74 

1750 

a 


































110 


Index. 


Subdi- 


Mine exits -- 


Page 

27, 28 

Order 

1712 

vision 

k 

Missed holes _ _ 


65 

1745 

b 

Number of men allowed to ride on 
in inclined shafts- 

bail of skiji 

77 

1751 

c 

Orders for underground men- . 


28 

1713 

_ 

Reasonable precautions to protect 

employees— 

26 

1712 

a 

Record of monthly fire drills „ . 


28 

1712 

k 

Reporting of dangerous mine gas_ 


42, 43 

1720 

c 

Reports of defects to operator_ 


22 

1708 

b 

Roof inspection — .... 


43 

1728 

a, b 

Safety committees_ _ _ 


23, 24 

1708 

d 

Safety inspections „ — __ 


22 

1708 

b 

To appoint powder man ... _ 


22 

1708 

b 

Weekly shaft inspection reports_ 

. . 

23 

1708 

c 

Dynamite. See Explosives. 

Thawing'... 


62, 63 

1743 

h, i 


E 

Electric caps, instantaneous and delay in same 


round prohibited „_ _ - __ -- 

67 

1745 

h 

Electric exploders, shaft sinking . --- — - 

68 

1745 

k 

Electrical conductors, explosives near, prohibited— 

61 

1743 

b 

Electrical orders, general _ _ _ — —- 

82-96 1 

760-1767 

__ 

Electricity: Apparatus, repairing and precaution_ 

84 

1761 

d 

Armored conductors _ _ - - 

89 

1765 

a 

Branch circuits ——. — — __— 

91 

1765 

h 

Buried cables __ - — — _ 

90 

1765 

e 

Cable fittings . - - . -- -__ 

93 

1765 

P 

Circuit breakers_ —— —- 

90, 91 

1765 

f, h 

Circuit breakers, fuses and switches __ 

94 

1766 

a, e 

Circuit breakers, stationary motors . _ 

94, 95 

1767 

a 

Circuits entering or leaving all transformers— 

89 

1764 

h 

Conductors crossing passageways_ 

88 

1764 

d 

Conductors in shafts _ — — — .. —_ 

92, 93 

1765 

m 

Conductors, joints .. _ . . _ 

93, 94 

1765 

r, s 

Danger signals . . _ _ ___ 

86 

1763 

e 

Definitions -- — —- - — — — 

82, 83 

1769 

a, i 

Carrying capacity- . _ ___ __- 

83 

1760 

i 

Difference of potential . __ _ _ 

82 

1760 

b 

Grounding potential - __— 

83 

1760 

g 

High voltage supply__ 

83 

1700 

f 

Low voltage supply_ _ 

82 

1760 

d 

Medium voltage supply__ 

82 

1760 

e 

Potential ___ 

82 

1760 

a 





































Index. 


Ill 



rage 

Order 

Subdi¬ 

vision 

Potential of a circuit_ 

82 

1760 

C 

Underground station_ __ 

83 

1760 

h 

Emergency lights „ __ 

86 

1763 

g 

Equipment, care __ --_ 

83, 84 

1761 

a, g 

Fire protection ____________ _____ 

86 

1763 

f 

Fuses, circuit breakers and switches. - 

94 

1763 

a, e 

Fuses, protection of circuits_ 

90 

1765 

f 

Fuses, stationary motors _ 

94, 95 

1767 

a 

Grounding _____ 

85 

1763 

a 

Ground detectors, inspection __ _ 

85 

1763 

c 

High voltage wires protected____ 

89 

1765 

a 

Inexperienced persons must not handle__ 

84 

1761 

b, c 

Insulation conductors __ _ __ ___ _. 

89 

1765 

b 

Insulation, lighting circuits____ 

91 

1765 

i 

Lamps, cords and sockets __. _ __ 

95 

1768 

a, c 

Lightning arresters __ __ 

90 

1765 

d 

Lines overhead, surface__ _ 

90' 

1765 

d 

Live metal work on switchboards___ 

88 

1764 

e 

Map of system.- -- 

86 

1763 

h 

Notice of installation__ __ 

83 

1761 

a 

Protection, conductors _ __ __ 

92-94 

1765 

1-s 

Protection during blasting __ _ ____ _ 

93 

1765 

o 

Protection, high voltage feeders_ _ 

91 

1765 

g 

Protection, lamps ___ _-—__ 

95 

1763 

c 

Protection terminals _—___ 

88 

1764 

f 

Repairs _ __ __ ___ ___ 

84 

1761 

d 

Resuscitation _ —- 

84 

1761 

f 

Shock wilfully, caused___ 

83 

1761 

a 

Shot-firing precautions _— _ 

65, 67 

1745 

d, e, f 

Space back of switchboards —____ 

88 

1764 

c 

Stationary motors _ —__ 

94, 95 

1767 

a 

Supports' of conductors. _ ___ 

80 

1765 

b, c 

Switchboard construction_ __ 

87,88 

1764 

a, f 

Switchboard passageways _— -- 

87, 88 

1764 

b 

Switchboard specifications _ -- 

85 

1763 

d 

Switches _ - - 

94 

1763 

b, e 

Transformer rooms, construction, lighting_ 

88 

1764 

g 

Transmission lines and cables- - 

89-93 

1765 

a-s 

Trolley wires, underground -__ _ 

Underground lights, installation by competent 

91, 92 

1765 

j, k 

person----- 

84 

1761 

1 

Underground stations and transformer rooms. 

S7-89 

1761 

a-h 

Voltage underground _ _. - 

85 

1763 

b 

Wires, tampering forbidden- - 

29 

1713 

8 

Elimination, rock dust-,... 

49, 50 

1739 

a, d 












































112 


Index. 


Subdi- 



Page 

Order 

vision 

Employees, definition _ ____ 

8 

1700 

o 

Employment, solitary forbidden___ 

26 

1712 

c 

Engine safety orders: Cranks and connecting rods. 

100 

1773 

108a 

Exhaust pipes, discharge____ 

101 

1773 

111b 

Flywheel pit, toeboards- - 

99 

1773 

107c 

Flywheels, guards _.. . 

99 

1773 

107a,b 

Flywheels, housed - - 

99 

1773 

107d 

Flywheels, starting guards must be replaced_ 

99 

1773 

107e 

Governor, belt, rope driven, safety device- 

97 

1773 

101a 

Governor, required __ 

97 

1773 

101a 

Governors, guards for projecting rotating parts 

97 

1773 

101b 

Guards, general _ 

97 

1773 

100a 

Repairs, prevention of parts moving__ 

98 

1773' 

104 a 

Rope-driven wheel, guards).. __ 

100 

1773 

10Tf 

Side-crank, guards --- __ 

100 

1773 

108b 

Ttap, drains, etc., discharge_.... . _ 

101 

1773 

111a 

Valve gears, governor fails to act __ ... 

97 

1773 

102a 

Engines burning fuel underground__ 

52 

1741 

e 

Engineer: Chief mining, definition__ 

6 

1700 

h 

Hoisting signal __ 

80 

1758 

a 

Mining, definition ---...__ 

6 

1700 

I 

Engineer’s procedure, dangerous mines_-- . 

17, 18 

1706 

a, b 

Escapeways: Mine exit act___ 

37 , 38 

1721 

L 2 

Only one outlet to surface___ _ 

40, 41 

1724 

a 

Only one outlet to surface, provision for devel- 

• 



opment work ___— 

38, 39 

1722 

c 

Through other mines.. __ 

39, 40 

1723 

a, b 

Excavations and workings, definition... __ 

6 

1700 

j 

Exits. See Escapeways. 




Exits, act___ ___ 

37, 38 

1721 

1,2 

Exits: Inflammable houses prohibited_ 

41, 42 

1725 

a, b 

Ladders and ladderways..--- 

48, 49 

1738 

a, h 

Only one outlet to surface...__ 

40, 41 

1724 

a 

Through other mines_ 

39, 40 

1723 

a, b 

Two openings to surface.... 

38, 39 

1722 

a, c 

Experience required by superintendent ... . ... _. 

22 

1708 

a 

Explosions, extraction from bore holes_ 

66 

1745 

c 

Explosions in blast counted-- -... 

65 

1745 

b 

Explosives: Act-- --- -- 

54-60 

1742 

1-10 

Appointment of competent man in charge of 




Magazine . .. . .. ... _______ 

22 

1708 

b 

Definition -- -- 

7 

1700 

1 

Extraction from “missed” hole_ ... 

29 

1713 

12 

Inholes, proceduro of miners_ 

29 

1713 

4 

Misses, holes must be reported_ 

30 

1713 

14 








































Index. 


113 


Subdi- 

Page Order vision 

Near electrical conductors prohibited..- 61 1743 b 

Orders for underground men- 29, 30 1713 4,6,9,10,14 

Removal without orders from mine or magazine 63 1743 1 

Smoking while handling_ 29 1713 10 

Special precautions, live electric wires_ 63 1743 k 

Storage and use, general- 60-64 1743 a-o 

Storage in mine _ 61 1743 b 

Tamping -- 30 1713 11 

Transportation on electric locomotive under 

ground prohibited- 63 1743 j 

Transportation, storage and use..- 60-64 1743 a-o 

Transportation with men _ 77 1751 e 

Underground magazines _—_ 61, 62 1743 b-e 

Extension ladders, shafts__ 49 1738 h 

Extinguishers, electrical fires- 86 1763 f 

F 

Factor of safety, hoisting ropes- 74 1750 b 

Failure to comply with orders- - 18 1706 b 

Fatal injuries, investigation - - 21 1707 a 

Fatal injuries must be reported to Commission 

by wire---- 19 1707 a 

Fencing abandoned shafts, act-- 30, 31 1714 1-4 

Fire protection at outlets --- 41, 42 1725 a, b 

Fire protection, magazines _.- 63 1743 m 

First-aid corps, composition -- 11,12 1703 a 

Instruction - H> 12 1703 a 

First-aid materials __-- 11> 12 1703 a, b 

Forbidden, getting on or off bucket or cage while 

same is in motion- 80, 81 1758 ti 

Foreman, appointment —. 24 1709 a 

Foreman, duties. See Duties. 

Foreman, mine, definition - 6 1700 g 

Foreman required for cooperative mine rescue 

station--- If 1704 b 

Fuse: Capping _.- 64 1744 d 

Defective, use forbidden- 64 1744 f 

Electric, capacity and construction- 94 1766 a-e 

General __- 64, 65 1744 a-h 

Rate of burning, notice posted.. 64 1744 a-b 

Special precautions - 65 1744 h 

Spitting, number by one man- 67 1745 g 

Storage, underground _.- 65 1744 h 

Warming ..--- 64 1744 g 

Waterproofing ....—- *744 c 

S—6163 







































114 


Index. 


Subdi- 



Page 

Order 

vision 

Gas, dangerous, report by superintendent_ 

42, 43 

1726 

c 

Gasoline, storage_ 

51, 52 

1741 

a, b 

Gasoline, use under ground_ 

52 

1741 

•1 

Gas-tight doors __ _ 

41, 42 

1725 

a, b 

Gates, shaft protection__ 

45 

1732 

a 

Gears guarded _ _ 

31 

1715 

a 

General safety orders_ ___ 

96 

1769 


General safety precautions_ __ 

26-28 

1712 

a-k 

Gratings in square-set stopes_.. _ __ 

47 

1735 

a 

Ground detectors, electrical____ 

85 

1763 

c 

Grounding electrical apparatus_ 

85 

1763 

1 

Grounding, electrical definition-- ... 

83 

1760 

g 

Guard rails, general ____ 

31, 32 

1715 

a, b 

Guard rails, shaft protection __ 

45 

1732 

a 

Guard rails, square-set stopes_ __ 

47 

1735 

a 

Guarding places when blasting.. - 

65 

1745 

a 

Guides, vertical shafts, crossheads required___ 

47, 48 

1737 

a 


H 


Hand holds in ladderways . -- 

49 

1738 

e 

Hatches required where buckets used__ 

46 

1732 

b 

Haulage, mechanical, refuge places_ _ 

46 • 

1733 

a 

Head frame required amply strong___ 

73 

1749 

a 

High voltage, electrical, definition ...-- ..... 

83 

1760 

f 

High voltage wires, protection _ ... .. 

89 

1765 

a 

Hoisting, eager or skip tender required--.. 

69 

1746 

c 

Hoisting compartments, incline shafts, special pre¬ 
cautions ------— 

70 

1746 

f 

Hoisting, general ___ 

68-71 

1746 

a-h 

Hoisting engineer: Appointment -- .. ._ 

70 

1747 

a 

Duties _ __ 

70-73 

1748 

1-15 

Must be competent_ 

70, 71 

1747 

a 

Physical examination required___ 

70, 71 

1747 

a 

Hoisting men, general __ 

68-70 

1746 

a-f 

Hoisting men allowed to ride on bail of skip.— .. 

30 

1713 

18 

Hoisting men in skips, special requirements_ _ 

77 

1751 

c 

Hoisting men, maximum rates of speed__ 

68 

1746 

a 

Hoisting men, mine bell signals__ 

79-81 

1758 

a-e 

Hoisting men, number allowed to ride on bail of 
skip in inclined shafts____ 

77 

1751 

c 

Hoisting men with explosives _.__ 

77 

1751 

e 

Hoisting, number men on skip bail- 

68, 69 

1746 

b 

Hoisting, overwinding device..... 

73 

1749 

b 









































Index. 


115 


Hoisting ropes: General _ /. __ 

Babbitted, special inspection.—._ 

Discarding worn _ 

Fastening _____ 

Inspection __ 

Safety factor__ 

Size of sheaves_._ 

Hoisting, shaft sinking- 

Hoisting signals _ 

Hoisting special requirement ___ 

Hoisting timber, tools, etc__ 

Hoisting with bucket, crossheads required_ 

Hoisting with bucket, cage or skip, open hook pro¬ 
hibited ___ 

Hoisting with bucket, speed___ 

Hours of labor in mine, underground workings 

and smelters, state act--- 

Houses, inflammable, over escapeways--- 

Housing and sanitation act- 


I 

Incline shaft: Number of men allowed to ride on 

bail of skip---- 

Skip tracks --- 

Special precautions _ 

Inclined ladders ---- 

Inflammable gas must be reported by superinten¬ 
dent ____ 

Inflammable houses, over escapeways- 

Inflammable material, general - 

Inflammable material near mine openings- 

Inflammable substances near magazines- 

Inflammable substances, storage - 

Injunction, unsafe place of employment, violation 

of safety orders- 

Injured, care --- 

Injuries, record filed in mine office--- 

Injuries, reports by employees--— 

Injuries required reported-- 

Inspection by foreman __- 

Inspection by superintendent --- 

Inspection, escapeways between mines- 

Inspection, hoisting ropes --— 

Inspection monthly, mine rescue apparatus- 


Page 

Order 

Subdi¬ 

vision 

74-76 

1750 

a-g 

73, 76 

1750 

g 

75 

1750 

d 

75 

1750 

f 

75 

1750 

e 

74 

1750 

a, b 

75 

1750 

c 

78 

1753 

a 

79-81 

1758 

a-f 

77 

1751 

c 

81 

1758 

c 

47 

1737 

a 

70 

1746 

g 

69 

1746 

d 

102 

1775 

1-3 

41, 42 

1725 

a, b 

32-35 

1717 

1-7 


77 

1751 

c 

69, 70 

1746 

e 

70 

1746 

f 

49 

1738 

c-g 

42, 43 

1726 

c 

41, 42 

1725 

a, b 

51-54 

1741 

a-i 

53 

1741 

g 

64 

1743 

o 

64 

1743 

o 

18, 19 

1706 

c 

11 

1703 

a 

26 

1711 

a 

26 

1711 

a 

30 

1713 

15 

25 

1710 

b 

22 

1708 

b 

40, 41 

1723 

a 

75,76 

1750 

e-g 

15 

1704 

e 






































116 


Index. 


Subdi- 



Page 

Order 

vision 

Inspection, roof ------- _ __ 

-- 43 

1728 

a, b 

Inspection, shaft weekly_ - __ 

_ 23 

1708 

c 

Inspection, sheave wheels, oiling 


1752 

a, b 

Instruction, first-aid corps--- 

_ 11, 12 

1703 

a 

Investigation of fatal injuries- -- 

_ 21 

1707 

a 


L 


Ladders and ladderways, general__ 

48, 49 

173S 

a-h 

Ladders: Inclined _ _ _ 

48, 49 

1738 

c-g 

Rungs __ - _ _ _ 

48 

173S 

a, b 

Vertical - - ---------__ 

49 

1738 

f 

Width _ -- ... -- __ __ 

48 

1738 

a 

I.adderway compartments, single shaft_ 

40, 41 

1724 

a 

I.adderway, hand holds 

49 

173S 

c 

Lagging, square-set stopes. -- 

47 

1735 

a 

Lamp sockets, electric. - _ __ 

95 

1768 

a 

Laws. See Act. 




Leasers, application of orders_ ___ 

8 

1700 

o 

Lighting and candles_ _ __ 

50, 51 

1740 

a-d 

Lighting circuits, electric, insulation.-. _ ... 

91 

1763 

i 

Lighting, electric, general orders . ... 

95 

1768 

a-c 

Lighting, transformer rooms _ - - . 

88 

1764 

g 

Lightning arresters, electrical _ - . _- 

90 

1765 

d 

Lights at stations __ . _ - - 

51 

1740 

b 

Lights, electric, failure ..- 

S6 

1763 

g 

Lights, electric, protection _ ___ 

95 

1768 

c 

Lights required on moving trains __ 

96 

1772 

c 

Lines, electric, above ground.- _ 

90 

1765 

d 

Loading, placing of primer cartridge -- . 

68 

1745 

j 

Locomotives, underground, burning fuel - 

52 

1741 

d 

Low voltage, definition.. . __ 

82 

1760 

d 


M 


Machinery, lighting __ __ _ 

51 

1740 

c 

Machinery, stairs, etc., guard rails required.. - 

31, 32 

1715 

a 

Machines and tools, removed before explosives de¬ 
livered --- .. -—__ 

67 

1745 

i 

Magazines: Act . -_ _ - 

55, 56 

1742 

3 

Competent men in charge- -- __ 

22 

170S 

b 

Construction, large anti small, act-- _ 

56, 57 

1742 

3 

Firearms prohibited — - --- 

60 

1742 

13 

Fire protection ...-- ...--- 

63 

1743 

m 

General_... . —- 

61, 62 

1743 

b, d, g 

Near inflammable substances- _ 

64 

1743 

o 

Smoking prohibited---- 

64 

1743 

o 








































Index. 

Magazines and powder boxes locked, act_ 

Page 

55 

Order 

174? 

117 

Subdi¬ 

vision 

3a 

Magazines and powder boxes locked, general_ 

61 

1743 

b, C 

Manways, cleaning obstructions 

44 

1729 

a 

Maps, electric system _ _ _ _ _ _ 

86 

1763 

h 

Maps of abandoned mine must be filed_ 

17 

1705 

b 

Maps of mine workings must be made_ 

16, 17 

1705 

a 

Materials, first-aid _ __ _ 

11, 12 

1703 

a, n 

Material, inflammable, near mine openings___ 

53 

1741 

g 

Mechanical haulage, blocking of frogs required_ 

96 

1772 

a 

Mechanical haulage, employees riding on cars pro¬ 
hibited __ ____ 

98 

1772 

b 

Mechanical haulage, refuge places___ _ 

46 

1733 

a, b 

Medium voltage, definition. _ __.... _ ... 

82 

1760 

c 

Men, number, definition ... . ....._ 

6,7 

1700 

k 

Men, number to ride on cage _. ____ 

63 

1746 

b 

Metal receptacles for waste ___ _ 

53 

1741 

i 

Mineral, definition ... _ _. ___ 

6 

1700 

d 

Mine bells signals, general_ .... . . __ 

79-SI 

1758 

a-f 

Mine, definition__ ... . —-__ 

5 

1700 

c 

Mine exits, act __ _ ... _. _ 

CO 

CO 

GO 

1721 

1, 2 

Mine foreman. See Foreman. 

Mine foreman, definition _ _ . __________ 

6 

1700 

g 

Mine maps must be filed upon abandoning mine_ 

17 

1705 

b 

Mine maps must be made_ .____ _ - 

16,17 

1705 

a 

Mine openings, removal inflammables..__ 

53 

1741 

f-h 

Mine openings through other mines.__ _ _ _ 

39, 40 

1723 

a, b 

Mine rescue apparatus: General- ... 

13 

1704 

a 

Monthly inspections__- 

15 

1704 

e 

Monthly practice _ _ ...- 

16 

1704 

g 

Number of trained men_ _ ___ 

16 

1704 

g 

Physical examination for men __ 

16 

1704 

h 

Keports __ —__ _ -- -- 

15 

1704 

f 

Mine rescue cooperative station_ 

13, 15 

1704 

a-f 

Mine rescue stations, supplies .. _... .. 

15 

1704 

a 

Mine superintendent. See Duties. 

Mine telephone required, act _ .._ --- 

78, 79 

1755 

1,2 

Mine timber required ___ _ _ _ 

44 

1730 

a-c 

Mine ventilation __. _ -- --- 

42 

1726 

a, b 

Miners, timber supply__ __ 

44 

1730 

b, c 

Miners, to timber working places -- 

44 

1730 

a 

Mines, telephones, tunnels and adits_ 

79 

1756 

__ 

Mining engineer, definition-- 

6 

1700 

i 

Missed holes, extraction explosives- 

30 

1713 

12 

Missed holes, reported- --- 

30 

1713 

14 






































118 


Index. 


Sulxli- 



Page 

Order 

vision 

Missed holes, reports, compulsory _ . .. 

65 

1745 

b 

Monthly fire drills required_ —_ _ 

27, 2S 

1712 

k 

Monthly inspections, mine rescue apparatus . 

35 

1704 

e 

Monthly practice, mine rescue apparatus_ 

16 

1704 

S 

Motors, electric grounding_ _ _ . ... 

85 

1763 

a 

Motors, electric, protection_ 

... 94, 95 

1767 

a 


N 


Naphtha, storage_ 

51, 52 

1741 

a-d 

Notification, dangerous conditions_ 

17, 18 

1706 

a, b 

Notice: Designation for service_ 

10, 11 

1702 

a-c 

Electrical installation, required _ _ ... ... _ 

83 

1761 

a 

Fatal accidents _ .... _ __ 

20, 21 

1707 

_ 

Hoisting, posting _ _ _ 

73 

1749 

13 

Prohibiting use of dangerous machine- 

19 

1706 

c 

Rate of burning fuse.. _ 

64 

1744 

b 

Speed of hoisting__ ... _ 

68 

1746 

a 

To be filed with Commission 

10 

1702 

a 

Number of trained men required for mine rescue 
apparatus ___ 

16 

1704 

S 


O 


Obstructions in escapeways- 

39, 40 

1723 

a 

Obstructions in manways- - 

44 

1729 

a 

Oiling safety catches... — ... ... .. _ 

77 

1752 

a 

Oiling sheave wheels_ . - 

78 

1752 

b 

Oil, storage _ _ - _ ... 

51, 52 

1741 

a-c 

Oil, underground supply- - - 

52 

1741 

c, d 

Oily waste underground. . . . .... _ 

53 

1741 

i 

Open cut workings. . .. ... ... _ _ 

5 

1700 

c 

Openings, dangerous, abandoned, act_ _ 

30, 31 

1714 

1,2 

Openings, mine, inflammables near_ 

51-53 

1741 a, b, 

S, h 

Openings, platforms _ . _ 

49 

1738 

d 

Openings: Protected underground...:__ 

45 

1731 

a, b 

Removal of protection by underground men 




prohibited _ ... . ... ... .. 

29 

1713 

7 

Stopes, protection ... .. ... ..._... _ 

47 

1735 

a 

Through abandoned mines, upkeep.. 

40 

1723 

b 

Through other mines_—_ _ 

39, 40 

1723 

a, b 

To surface, act- - ... _ 

37, 38 

1721 

1,2 

To surface, two required_____ 

38, 39 

1722 

a-c 

Operator, definition_ . .. __ _ 

6 

1700 

e 


Operator, duties. See Duties. 






































Index. 


119 

Sulxli- 


\ 

Page 

Order 

vision 

Orders: Air pressure tank_ . 

96 

1770 

a 

Boiler safety __ ___ 

101, 102 

1774 


Electrical, general _ ... _ ... _ 

82-96 1760-1767 


Engine safety____ 

97-Id 

1773 

100-111 

For underground men___ 

28-30 

1713 

1-18 

For underground men to be posted on bulletin 
boards __ ... _ _ _ 

28 

1713 


General safety_ _. . . _ ... _ _ 

96 

1769 


Woodworking safety___ 

* 103 

1776 

__ 

Orehouses, dust allayed_ 

50 

1739 

d 

Organization of safety committees...__ 

23, 24 

1708 

d 

Outlets, closing, communicating ___ 

39, 40 

1723 

a, b 

Outlets, not to be covered by inflammable houses.. 

41, 42 

1725 

a, b 

Outlets, provisions affecting mines having only one 

40, 41 

1724 

a 

Outlets to surface, two required_ 

38, 39 

1722 

a-c 

Overwinding safeguards ... _ 

73, 74 

1749 

a-c 

Oxygen in mine air_ 

42 

1726 

b 

Oxygen mine rescue apparatus, duty of operator... 

13 

1704 

a 


P 


Passageways around shaft at station__ 

46 

1732 

c 

Passageways, electrical conductors_ 

88 

1764 

d 

Passageways, electrical switch boards.._ 

87, 88 

1764 

b-d 

Penalty, state explosives act ._ _ 

56, 57 

1742 

4 

Permit, strangers or visitors at mines_ 

27 

1712 

e 

Person, definition- - 

7,8 

1700 

m 

Physical examination required for hoist engineers.. 

70 

1747 

a 

Physical examination required for men trained with 




breathing apparatus ... _ _ 

16 

1704 

h 

Pillars, shaft safety--- 

43 

1727 

a 

Pits, definition _. .. __ - 

5 

1700 

e 

Places refuge, in haulageway... - 

46 

1733 

a, b 

Platforms: In ladderways_ ... - 

48 

1738 

c 

Ladder projections_ 

49 

1738 

e 

Openings .._ 

49 

1738 

d 

Plan, electric system. _ ... _ _ 

86 

1763 

h 

Plural numbers, definition- -— -- 

5 

1700 

b 

Potential, definitions _ ._. - 

82, 83 

1760 

a-f 

Powder. See Dynamite and Explosives. 




Precautions, general safety-- 

26-28 

1712 

a-k 

Precautions, hoisting material, act- - 

81 

1758 

e 

Primers. See Explosives. 




Procedure of engineers if operators fail to follow 




instructions regarding dangerous conditions.. 

18 

1706 

b 


































120 


Index. 


Protecting men, shaft sinking_ 

Protection against water_ 

Protection, openings, stopes_ 

Protection, shaft _ 

Protection, winzes, raises and openings.__.. 

Providing for mine exits, act_ 

Provisions affecting mines having only one outlet— 
Pump rooms, lighting__ 


R 

Rails, guard, general... 

Rails, guard, shaft protection_ 

Rails, skip _ 

Railings in square set stopes_ 

Raises approaching accumulations water.. 

Raises, protection _ 

Rate of burning of fuse, notice to be posted_ 

Recommendation, stenches in case of Are or “cave- 

ins” ___ 

Refuge, places required___ 

Regulations provided for control of explosives, 

state act _ 

Repairs, shaft, hoisting engineer notified_ 

Reporting of unsafe conditions by employees_ 

Reports: Accidents and injuries by employees- 

Accidents and injuries by operator_ 

Fatal injuries, by wire_ 

Fires, gas and inrush water- 

Mine rescue apparatus__ 

Missed holes, by firer_ 

Missed holes, compulsory_ 

On dangerous equipment required- 

Superintendent to operator_ 

To chief mining engineer yearly-- 

Unusual condition in working place_ 

Respirators and rock dust__ 

Restraining dam, underground____ 

Rock or ground, method of testing for miners- 

Roof inspection _ 

Rubbish, combustible __ 

Rungs in ladders- 

Runway for carman required__ 


Tage 

78 
46, 47 
47 
45,46 
45 
37, 38 
40, 41 
51 


31, 32 

45 
69, 70 

47 

46 

45 

64 

28 

46 

54-60 
46 
27 
26 
30 
19 
9, 10 
10 
30 

65 
22, 23 

22 

8-10 
30 
49, 50 
96 
29 
43 
53 

48 
32 


Order 

1754 

1734 

1735 
1732 
1731 
1721 
1724 
1740 


1715 

1732 
1746 
1735 
1734 

1731 

1744 

1712 

1733 

1742 

1732 

1712 
1711 

1713 

1707 
1701 
1704 
1713 

1745 

1708 
1708 
1701 
1713 
1739 
1771 
1713 
1728 
1741 
1738 

1716 


Subdi¬ 

vision 

a 

a-c 

a 

a-c 

a, b 
1,2 
a 
c 


a 

a 

e 

a 

a 

a 

a, b 

k 
a, b 

1-16 

c 

d 

a 

15 

"b 

f 

14 

b 

b-c 

b 

a-c 

17 

a-d 

a 

5 

a, b 

f 

a, 1) 
a 








































Index. 


121 


S \ 

Page 

Older 

Subdi¬ 

vision 

Safeguards against overwinding, general_ . _ 

73, 74 

1749 

a-c 

Safety bulletin boards required__ _ 

28 

1713 


Safety catches, oiling and testing.. _ . _ . 

77 

1752 

a 

Safety catches on cages and skips__... 

77 

1752 

a 

Safety committees, organization_ . 

23, 24 

1708 

d 

Safety factor of hoisting ropes ... . _ 

74 

1750 

a, b 

Safety inspections, superintendent’s duties _ 

22 

1708 

b 

Safety orders: Air pressure tank . 

96 

1770 

a 

Boiler _... __ ... _ _ 

101, 102 

1774 


Engine _ 

97-101 

1773 

100-111 

General _ .___ _ 

96 

1769 


Woodworking __ __ _ 

103 

1776 


Safety pillars_ _ 

43 

1727 

a 

Safety precautions, general. _ __... 

26-28 

1712 

a-k 

Sanitation act, labor camp, act__ _. _ 

32-35 

1717 

1-8 

Sanitation, dry closets, drinking water. .. _ 

36, 37 

1720 

a, b 

Sanitation, dry or water closets _ 

36, 37 

1720 

a 

Screens guarded, moving_ __ _ 

31 

1715 

a 

Services of notices, designation_ 

10 

1702 

a 

Shaft: Electrical conductors in_ _ _ 

92 

1765 

m 

Fencing, act_ 

31 

1714 

1-4 

Hoisting, general ._ .. ... ... _ 

6S-71 

1746 

a-f 

Incline, skip tracks. _ __ 

69, 70 

1746 

e 

Incline, special precautions_ 

70 

1746 

f 

Inspection reports, weekly_ 

23 

1708 

c 

Men riding on bail of skip . _ _ 

30 

1713 

18 

Passageways around, at station_ 

46 

1732 

c 

Protection . ___ _ 

45, 46 

1732 

a-c 

Protection, sinking ..._ 

78 

1754 

a 

Repairs, hoisting engineer to be notified._ 

46 

1732 

c 

Retimbering, solitary employment forbidden_ 

27 

1712 

h 

Signal devices required --- 

79 

1757 

a 

Signaling, general orders --- 

79 

1757 

a, b 

Signaling, mine bell orders.-- 

79-81 

1758 

a-f 

Signaling, telephone, act_ 

79, 80 

1755 

1-2 

Sinking, extension ladders required. ...-- 

49 

1738 

h 

Sinking, hoisting precaution- - 

78 

1753 

a 

Sinking, use of electric exploders-- 

6S 

1745 

k 

Stations, incline - - 

70 

1747 

t 

Stations, signal boards- 

81 

1759 

a 

Stations, stationary lights- 

51 

1740 

b 

Stoping near - 

43 

1727 

a 

Vertical, hoisting - 

76, 77 

1751 

a, b 

Vertical, safety catches for cage or skip re¬ 
quired _ 

77 

1751 

b 













































122 


Index. 


Subdi- 

Page Order vision 

Sheave wheels, inspected and oiled_ 78 1752 b 

Sheaves, small, forbidden-- 75 1750 c 

Sheds, timber framing_ 53 1741 g 

Shift boss, duties, hoisting-- 63 1746 b 

Shooting in shaft- 80 1758 a 

Shot firers, duties, blasting- 65, 65 1745 a-e 

Shot firing precautions, electricity_ 66, 67 1745 d, e, t 

Signal boards at each station required- 81 1759 a 

Signal warning hoisting engineer_ 74 1749 c 

Signaling, See Shaft. 

Signals, general- 79 1757 a, b 

Signs, bell signals---—- 81 1758 f 

Signs:, hoisting, superintendent to post signs_ 68 1716 a, b 

Signs, magazines, act,___ 55, 66 1742 3a, b 

Signs, speed of hoisting- 63 1746 a 

Singular and plural numbers, definition_ 5 1700 b 

Sinking shaft, extension ladders_ 49 1738 h 

Sinking shaft, hoisting precaution- 78 1753 a 

Sinking shaft, protection_ 78 1754 a 

Skip: Construction, vertical shafts- 76,77 1751 b 

Hoisting men, construetion_ _ 76 1751 a, b 

Hoisting men, special requirements_ 77 1751 c 

Men riding on bail_ 30 1713 18 

Number of men permitted_ 63 1746 b 

Operation when sinking- 76 1751 a 

Skip pockets, passageways_ 46 1732 c 

Skip tender, duties, closing gates- 77 1751 d 

Skip tender, duties, general_ 69 1746 c 

Skip, testing safety catches- 77 1752 a 

Skip tracks, specifications_ 69 1746 e 

Smoking in magazine, prohibited_ 64 1743 n 

Solitary employment forbidden_ 20 1712 c 

Special precautions, fuse_ 65 1744 li 

Special signal boards required at each station_ 81 1759 a 

Specifications, cages, hoisting- 76 1751 b 

Speed of hoisting men_ 68 1746 a 

Spikes or nails, protection of projecting points_ 27 1712 g 

Square set stopes, timbering and guarding_ 47 1735 a 

Stairs guarded, required- 31 1715 a 

State act, fencing abandoned shafts_ 30, 31 1714 1-4 

State act, hours of labor in mine, underground 

workings and smelter_ 102 1775 1-3 

State act, telephone system in mines_ 78, 79 1795 1, 2 

Stationary lights at stations- 51 1740 b 

Station signal board required__ 81 1759 a 

































Index. 


Stations, shaft protection_ 

Stenches, warning in case of a disaster, recom¬ 
mendation _ 

Stope, inspection required___ 

Stopes, protection of openings_ 

Stoping near shaft____ 

Storage of explosives, act___ 

Storage and transportation, caps, explosives_ 

Storage and use of explosives, general_ 

Storage of explosives, escape of miners underground 

Storage of explosives in mine_ 

Storage of fuse underground__ 

Storage of inflammable material_ 

Storage of oil, general_ 

Strangers or visitors at mines_ 

Strap iron, skip tracks.-- 

Stretchers required - 

Structures, inflammable _ 

Structures over escapeways-_•- 

Superintendent, appointment required- 

Superintendent, definition _ 

Superintendent: Duties, see Duties. 

Duty to immediately report dangerous condi¬ 
tions -—--- 

Experience required __ 

Safety inspections, reports..__ 

Supplies, first-aid, required--- 

Supplies, mine rescue stations-- 

Switchboards, electrical, live metal work-- 

Switchboards, specifications, electrical _ 

Switches, electric __ 


T 

Tamping powder with sticks --- 

Tamping rods, wooden required- 

Telegraphic reports, fatal injuries- 

Telephone communication, cooperative mine rescue 

station- 

Telephone system in mines, state act-- 

Telephones in mines, tunnels and adits- 

Tender, cage, must close gates- 

Terminals, electrical, protection - 

Testing safety catches--- 

Tests, mino rescue apparatus- 


Page 

45 

28 
43 
47 
43 
55, 56 
62 
60-64 
60 
61 
65 
51-53 
51, 52 
27 
69 
11-13 
53 
41, 42 
21 , 22 
5 


9, 10 
22 
22 
11-13 
15 
88 
85 
94 


30 

65 

20 

15 
78, 79 
79 
77 
88 
77 
15 


Order 

1732 

1712 

1728 

1735 

1727 

1742 

1743 
1743 
1743 

1743 

1744 
1741 
1741 
1712 
1746 
1703 
1741 
1725 
1708 
1700 


1701 

1708 

1708 

1703 

1704 
1764 
1763 
1763 


1713 

1745 

1707 

1704 

1755 

1756 

1751 
1764 

1752 
1704 


123 


Subdi¬ 

vision 

a 

k 

a 

a 

a 

3 

e-f 

a-o 

a 

b 

b 

a-g 

a-c 

e 

e 

a, b 
g 
a, b 
a 
f 


b 

a 

a 

a, b 
d 
e 
d 
b-e 


11 

a 

53 

c 

1,2 

d 

f 

a 

f 





































124 


Index. 


SuOrii- 


Thawing dynamite- 

Timber framing sheds near mine openings. 

Timber in manways, cleaning _ 

Timber in stopes_ 

Timber, miner to use _ 

Timber, operator to supply- 

Timber, tools, etc., must be securely lashed 

hoisting _ 

Timber, waste, underground- 

Timber, working places.-__ 

Timbering, general_ 

Toilets, operator to< provide-- 

Toilets, sanitation act__ 

Tools, hoisting_ 

Tracks, skip, wooden- 

Trained men, mine rescue apparatus- 

Trains in motion, lights required_ 

Transformer rooms, construction, lighting. 

Transformers, electrical, protection.... 

Transmission lines and cables_ 

Transportation, general _ 

Trestles, guarded required 1 _ 

Tributers, application of orders_ 

Trolley Avires, protection___ 

Tunnels, telephones required_ 

Two openings to surface required_ 


U 


Underground, definition 


struction required 


Underground storage of carbide. 


Unsafe conditions to be reported. 



Page 

Order 

vision 


62, 63 

1743 

h, i 


53 

1741 

S 


44 

1729 

a 


47 

1735 

a 


44 

1730 

a 


44 

1730 

a-c 

'y 

81 

1758 

e 


53 

1741 

f 


44 

1730 

a 


44 

1730 

a-c 


36, 37 

1720 

a 


33 

.1717 

4 


81 

1758 

e 


69 

1746 

e 


16 

1704 

? 


96 

1772 

C- 


88 

1761 

g 


89 

1764 

h 


88-93 

1765 

a-s 


96 

1772 

a-c 


31 

1715 

a 


8 

1700 

o 


91, 92 

1765 

5» k 


79 

1756 

_ 


38, 39 

1722 

a-c 


8 

1700 

n 


28-30 

1713 

1-18 

1- 

93 

1771 

a 


87-89 

1764 

a-h 


51 

1740 

d 


91, 92 

1765 

j, k 


17, 18 

1706 

a, b 


27 

1712 

d 


18,19 

1703 

c 

n 

18, 19 

1706 

c 





































Index. 


V 


Ventilating shaft, inflammable covers_ 

Ventilation, act _ 

Ventilation, mine required_ 

Vertical ladders _ 

Vertical shaft, cage construction_ 

Vertical shafts, safety catches for cage or skip 

required __ 

Violation of orders reported to foreman_ 

Violation of safety orders, injunction_ 

Visitors at mine require permits___ 

Voltage, definition _ 

Voltage, electrical, underground... 


W 

Walks guarded 1 , dangerous plank_ 

Warnings given when blasting_ 

Warning signals, hoisting engineer_ 

Waste dump tracks- 

Waste, oily, underground, removal_ 

Waste timber underground, removal__ 

Water closets required_ 

Water, drinking act- 

Water proofing, fuse_ 

Water, protection against_ 

Weekly inspection, shaft___ 

Whims, safeguards _ 

Winzes, raises and openings, protection-;- 

Wires, electric lighting circuits- 

Wires, electrical, protection and support_ 

Wooden structures near shafts_ 

Woodworking safety orders___ 

Working alone forbidden- 

Working places timber_ 

Workings and excavations definition_ 

Workings must be shown on mine maps.—.. 

Workings protection against water- 

Workmen’s Compensation, Insurance and Safety 
Act, Appendix _ 


125 


Page 
53 
33 
42, 43 
49 
76, 77 

77 
24, 25 
18, 19 
27 
82, 83 
85 


31 
65 
74 

32 
53 
53 
36 
36 
64 

46, 47 
22, 23 
47 
45 
91 
89-94 
53 
103 
26 
44 
6 

16, 17 
46, 47 

103 


Order 

1741 

1717 

1726 

1738 

1751 

1751 

1710 

1706 

1712 

1760 

17G3 


1715 
1745 
1749 

1716 
1741 
1741 
1720 
1719 
1744 
1734 
1708 
1736 
1731 
1765 
1765 
1741 
1776 
1711 
1730 
1700 
1705 
1734 


Subdi¬ 

vision 

S 

2 

a-c 

f 

a, b 

b 

a 

c 

e 

a-f 

b 


a 

a 

c 

a 

i 

f 

a 

c 

a-c 

c 

a 

a, b 
i 

a-s 

S 

c 

a 

j 

a 

a-c 


O 


6163 11-20 5,000 





















































































































































































































































































































* 

































































































































* 

» I 














• ■ 

































































































library of congress 



0 002 949 806 4 


































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